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The following Test is based on the syllabus of 60 Days Plan-2023 for UPSC IAS Prelims 2022.
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Consider the following statements about the Multidimensional Poverty Index:
How many of the above statements are correct?
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| The global Multidimensional Poverty Index (MPI) is an international measure of acute multidimensional poverty covering only 100 developing countries. | Access to cooking fuel, drinking water and electricity are used as indicators for measuring poverty.
Also Housing, Sanitation and Assets are other indicators that come under Living Standard Dimension. |
It complements traditional monetary poverty measures by capturing the acute deprivations in health, education and living standards that a person faces simultaneously.
The MPI assesses poverty at the individual level. If a person is deprived in a third or more of 10 (weighted) indicators, the global MPI identifies him as ‘MPI Poor’. The extent – or intensity –of his poverty is also measured through the percentage of deprivations he is experiencing. |
Note:
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| The global Multidimensional Poverty Index (MPI) is an international measure of acute multidimensional poverty covering only 100 developing countries. | Access to cooking fuel, drinking water and electricity are used as indicators for measuring poverty.
Also Housing, Sanitation and Assets are other indicators that come under Living Standard Dimension. |
It complements traditional monetary poverty measures by capturing the acute deprivations in health, education and living standards that a person faces simultaneously.
The MPI assesses poverty at the individual level. If a person is deprived in a third or more of 10 (weighted) indicators, the global MPI identifies him as ‘MPI Poor’. The extent – or intensity –of his poverty is also measured through the percentage of deprivations he is experiencing. |
Note:
The Head Count Ratio, used in the National Statistical Organization (NSO) report, is related to the estimation of which of the following?
Solution (b)
Head Count Ratio:
Solution (b)
Head Count Ratio:
Which of the following Committees were involved in the Poverty Line Estimation in India?
Select the correct answer using the code given below:
Solution (d)
| Statement 1
The Alagh Committee |
Statement 2
The Lakdawala Committee |
Statement 3 The Rangarajan Committee | Statement 4
The Tendulkar Committee |
Statement 5
The Narasimham Committee |
| Correct | Correct | Correct | Correct | Incorrect |
| Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for analysing India’s banking sector. |
Note:
From the 1991 India economic crisis to its status of the third largest economy in the world by 2011, India has grown significantly in terms of economic development. So has its banking sector. During this period, recognising the evolving needs of the sector, the Finance Ministry of the Government of India set up various Committees with the task of analysing India’s banking sector, and recommending legislation and regulations to make it more effective, competitive and efficient.
Solution (d)
| Statement 1
The Alagh Committee |
Statement 2
The Lakdawala Committee |
Statement 3 The Rangarajan Committee | Statement 4
The Tendulkar Committee |
Statement 5
The Narasimham Committee |
| Correct | Correct | Correct | Correct | Incorrect |
| Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for Poverty Line Estimation in India. | Committee for analysing India’s banking sector. |
Note:
From the 1991 India economic crisis to its status of the third largest economy in the world by 2011, India has grown significantly in terms of economic development. So has its banking sector. During this period, recognising the evolving needs of the sector, the Finance Ministry of the Government of India set up various Committees with the task of analysing India’s banking sector, and recommending legislation and regulations to make it more effective, competitive and efficient.
Consider the following statements about the Poverty Gap Index:
Which of the statements given above is/are correct?
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The poverty gap index is a measure of the intensity of poverty. It is defined as the average poverty gap in the population as a proportion of the poverty line. | It also helps provide an overall assessment of a region’s progress in poverty reduction and the evaluation of specific public policies or private initiatives. |
Note:
Poverty Gap Index:
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The poverty gap index is a measure of the intensity of poverty. It is defined as the average poverty gap in the population as a proportion of the poverty line. | It also helps provide an overall assessment of a region’s progress in poverty reduction and the evaluation of specific public policies or private initiatives. |
Note:
Poverty Gap Index:
Consider the following statements:
How many of the above statements are correct?
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Incorrect |
| According to the CMIE, the labor force consists of people who are 15 years or older, and belong to either of the following two categories.ie Are Employed or Are unemployed and are willing to work and are actively looking for a job.
Further the Labour Force Participation Rate (LFPR) is defined as the percentage of persons in the labour force (i.e., working or seeking or available for work) in the population. |
Worker Population Ratio (WPR):
WPR is defined as the percentage of employed persons in the population. |
Unemployment Rate (UR):
UR is defined as the percentage of persons unemployed among the persons in the labour force. |
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Incorrect |
| According to the CMIE, the labor force consists of people who are 15 years or older, and belong to either of the following two categories.ie Are Employed or Are unemployed and are willing to work and are actively looking for a job.
Further the Labour Force Participation Rate (LFPR) is defined as the percentage of persons in the labour force (i.e., working or seeking or available for work) in the population. |
Worker Population Ratio (WPR):
WPR is defined as the percentage of employed persons in the population. |
Unemployment Rate (UR):
UR is defined as the percentage of persons unemployed among the persons in the labour force. |
Consider the following statements about Economic Curves:
How many of the above statements are correct?
Solution (c)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Correct |
| Phillips Curve:
It is an economic concept developed by A. W. Phillips, stating that inflation and unemployment have a stable and inverse relationship. |
Beveridge Curve:
A Beveridge Curve, or a UV Curve, is a graphical representation of the relationship between unemployment and the job vacancy rate, the number of unfilled jobs expressed as a proportion of the labour force. |
Engel Curve:
In micro-economics, an Engel Curve describes how the household expenditure on a particular goods or service varies with the household income. |
Solution (c)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Correct |
| Phillips Curve:
It is an economic concept developed by A. W. Phillips, stating that inflation and unemployment have a stable and inverse relationship. |
Beveridge Curve:
A Beveridge Curve, or a UV Curve, is a graphical representation of the relationship between unemployment and the job vacancy rate, the number of unfilled jobs expressed as a proportion of the labour force. |
Engel Curve:
In micro-economics, an Engel Curve describes how the household expenditure on a particular goods or service varies with the household income. |
Consider the following statements:
Which of the statements given above is/are correct?
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| Per capita income is a measure of the amount of money earned per person in a nation or geographic region. Per capita income can be used to determine the average per-person income for an area and to evaluate the standard of living and quality of life of the population. Per capita income for a nation is calculated by dividing the country’s national income by its population. | Per capita income counts each man, woman, and child, even newborn babies, as a member of the population. This stands in contrast to other common measurements of an area’s prosperity, such as household income, which counts all people residing under one roof as a household. For comparison between countries, total income is not such a useful measure. |
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| Per capita income is a measure of the amount of money earned per person in a nation or geographic region. Per capita income can be used to determine the average per-person income for an area and to evaluate the standard of living and quality of life of the population. Per capita income for a nation is calculated by dividing the country’s national income by its population. | Per capita income counts each man, woman, and child, even newborn babies, as a member of the population. This stands in contrast to other common measurements of an area’s prosperity, such as household income, which counts all people residing under one roof as a household. For comparison between countries, total income is not such a useful measure. |
‘World Development Report’ is published by which organization/ institution?
Solution (b)
The World Development Report is an annual report published since 1978 by the International Bank for Reconstruction and Development or World Bank. Each WDR provides in-depth analysis of a specific aspect of economic development.
Solution (b)
The World Development Report is an annual report published since 1978 by the International Bank for Reconstruction and Development or World Bank. Each WDR provides in-depth analysis of a specific aspect of economic development.
Consider the following statements:
Which of the statements given above is/are correct?
Solution (a)
| Statement 1 | Statement 2 |
| Correct | Incorrect |
| Underemployment is a measure of employment and labor utilization in the economy that looks at how well the labor force is being used in terms of skills, experience, and availability to work. It refers to a situation in which individuals are forced to work in low-paying or low-skill jobs. | People who are classified as underemployed include workers who are highly skilled but working in low-paying or low-skill jobs and part-time workers who would prefer to be full-time whereas the term unemployment refers to a situation when a person who is actively searching for employment is unable to find work. |
Solution (a)
| Statement 1 | Statement 2 |
| Correct | Incorrect |
| Underemployment is a measure of employment and labor utilization in the economy that looks at how well the labor force is being used in terms of skills, experience, and availability to work. It refers to a situation in which individuals are forced to work in low-paying or low-skill jobs. | People who are classified as underemployed include workers who are highly skilled but working in low-paying or low-skill jobs and part-time workers who would prefer to be full-time whereas the term unemployment refers to a situation when a person who is actively searching for employment is unable to find work. |
With reference to various types of economic systems, consider the following:
How many of the above statements are correct?
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| In a market economy, also called capitalism, only those consumer goods will be produced that are in demand, i.e., goods that can be sold profitably either in the domestic or in the foreign markets. In a capitalist society the goods produced are distributed among people not on the basis of what people need but on the basis of what people can afford and are willing to purchase. | In a socialist society the government decides what goods are to be produced in accordance with the needs of society. It is assumed that the government knows what is good for the people of the country and so the desires of individual consumers are not given much importance. The government decides how goods are to be produced and how they should be distributed. | Most economies are mixed economies, i.e., the government and the market work together. In a mixed economy, the market will provide whatever goods and services it can produce well, and the government will provide essential goods and services which the market fails to do. |
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| In a market economy, also called capitalism, only those consumer goods will be produced that are in demand, i.e., goods that can be sold profitably either in the domestic or in the foreign markets. In a capitalist society the goods produced are distributed among people not on the basis of what people need but on the basis of what people can afford and are willing to purchase. | In a socialist society the government decides what goods are to be produced in accordance with the needs of society. It is assumed that the government knows what is good for the people of the country and so the desires of individual consumers are not given much importance. The government decides how goods are to be produced and how they should be distributed. | Most economies are mixed economies, i.e., the government and the market work together. In a mixed economy, the market will provide whatever goods and services it can produce well, and the government will provide essential goods and services which the market fails to do. |
Consider the following statements:
Which of the statements given above is/are correct?
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The estimates of monthly per capita consumption expenditure are vital in gauging the demand dynamics of the economy as well as for understanding the shifting priorities in terms of baskets of goods and services, and in assessing living standards and growth trends across multiple strata.
|
There are many factors, other than income and assets, which are associated with poverty; for instance, the accessibility to basic education, health care, drinking water and sanitation. The mechanism for determining the Poverty Line also does not take into consideration social factors that trigger and perpetuate poverty such as illiteracy, ill health, lack of access to resources, discrimination or lack of civil and political freedoms. |
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The estimates of monthly per capita consumption expenditure are vital in gauging the demand dynamics of the economy as well as for understanding the shifting priorities in terms of baskets of goods and services, and in assessing living standards and growth trends across multiple strata.
|
There are many factors, other than income and assets, which are associated with poverty; for instance, the accessibility to basic education, health care, drinking water and sanitation. The mechanism for determining the Poverty Line also does not take into consideration social factors that trigger and perpetuate poverty such as illiteracy, ill health, lack of access to resources, discrimination or lack of civil and political freedoms. |
The term, ‘Sen Index’ is related to:
Solution (a)
The Sen Index or Sen poverty index is a composite poverty measure, which combines incidence and intensity of poverty risk with the distribution of income among those at risk of poverty. Amartya Sen, noted Nobel Laureate, has developed an index known as Sen Index. There are other tools such as Poverty Gap Index and Squared Poverty Gap.
Solution (a)
The Sen Index or Sen poverty index is a composite poverty measure, which combines incidence and intensity of poverty risk with the distribution of income among those at risk of poverty. Amartya Sen, noted Nobel Laureate, has developed an index known as Sen Index. There are other tools such as Poverty Gap Index and Squared Poverty Gap.
Consider the following statements:
Which of the statements given above is/are correct?
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The demand curve is a relation between the quantity of the good chosen by a consumer and the price of the good. The independent variable (price) is measured along the vertical axis and dependent variable (quantity) is measured along the horizontal axis. The demand curve gives the quantity demanded by the consumer at each price. | The relation between the consumer’s optimal choice of the quantity of a good and its price is very important and this relation is called the demand function. Thus, the consumer’s demand function for a good gives the amount of the good that the consumer chooses at different levels of its price when the other things remain unchanged. |
Solution (c)
| Statement 1 | Statement 2 |
| Correct | Correct |
| The demand curve is a relation between the quantity of the good chosen by a consumer and the price of the good. The independent variable (price) is measured along the vertical axis and dependent variable (quantity) is measured along the horizontal axis. The demand curve gives the quantity demanded by the consumer at each price. | The relation between the consumer’s optimal choice of the quantity of a good and its price is very important and this relation is called the demand function. Thus, the consumer’s demand function for a good gives the amount of the good that the consumer chooses at different levels of its price when the other things remain unchanged. |
Consider the following statements regarding Substitution Effect
Select the correct answer using the code given below.
Solution (a)
| Statement 1 | Statement 2 |
| Correct | Incorrect |
| The substitution effect is the decrease in sales for a product that can be attributed to consumers switching to cheaper alternatives when its price rises. A product may lose market share for many reasons, but the substitution effect is purely a reflection of frugality. | When the price of a product or service increases but the buyer’s income stays the same, the substitution effect generally kicks in. The substitution effect is strongest for products that are close substitutes. An increase in consumer spending power can offset the substitution effect. |
Solution (a)
| Statement 1 | Statement 2 |
| Correct | Incorrect |
| The substitution effect is the decrease in sales for a product that can be attributed to consumers switching to cheaper alternatives when its price rises. A product may lose market share for many reasons, but the substitution effect is purely a reflection of frugality. | When the price of a product or service increases but the buyer’s income stays the same, the substitution effect generally kicks in. The substitution effect is strongest for products that are close substitutes. An increase in consumer spending power can offset the substitution effect. |
Macroeconomics, emerged as a separate branch of economics, after which of the following economist’s work?
Solution (d)
Macroeconomics, as a separate branch of economics, emerged after the British economist John Maynard Keynes published his celebrated book The General Theory of Employment, Interest and Money in 1936. His ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments.
Solution (d)
Macroeconomics, as a separate branch of economics, emerged after the British economist John Maynard Keynes published his celebrated book The General Theory of Employment, Interest and Money in 1936. His ideas fundamentally changed the theory and practice of macroeconomics and the economic policies of governments.
Which of the following are considered as characteristics of Capitalism?
Select the answer:
Solution (d)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Correct |
| A capitalist economy can be defined as an economy in which most of the economic activities have the characteristics that there is production taking place for selling the output in the market. | The most important element of human labour is needed to carry out production. This is referred to as labour. In capitalist economy, there is sale and purchase of labour services at a price which is called the wage rate (the labour which is sold and purchased against wages is referred to as wage labour). | In a capitalist country production activities are mainly carried out by capitalist enterprises. Profits are often used by the producers in the next period to buy new machinery or to build new factories, so that production can be expanded. This necessitates private ownership of means of production. |
Solution (d)
| Statement 1 | Statement 2 | Statement 3 |
| Correct | Correct | Correct |
| A capitalist economy can be defined as an economy in which most of the economic activities have the characteristics that there is production taking place for selling the output in the market. | The most important element of human labour is needed to carry out production. This is referred to as labour. In capitalist economy, there is sale and purchase of labour services at a price which is called the wage rate (the labour which is sold and purchased against wages is referred to as wage labour). | In a capitalist country production activities are mainly carried out by capitalist enterprises. Profits are often used by the producers in the next period to buy new machinery or to build new factories, so that production can be expanded. This necessitates private ownership of means of production. |
In the context of economic activity in India, the primary sector includes.
Select the correct answer using the code given below.
Solution (b)
When we produce a good by exploiting natural resources, it is an activity of the primary sector. This is because it forms the base for all other products that we subsequently make. Since most of the natural products are from agriculture, dairy, fishing, and forestry, this sector is also called agriculture and related sector.
| Statement 1 | Statement 2 | Statement 3 | Statement 4 |
| Correct | Correct | Incorrect | Correct |
| Since Agriculture is practiced by exploiting earth’s natural resources, it becomes an integral part of the primary sector | Quarrying comes under the Primary sector. | Banking is a component of the tertiary sector | Mining in a developing country like India comes under the Primary sector itself. However, In Developed countries, it can come under the secondary sector also.
|
Solution (b)
When we produce a good by exploiting natural resources, it is an activity of the primary sector. This is because it forms the base for all other products that we subsequently make. Since most of the natural products are from agriculture, dairy, fishing, and forestry, this sector is also called agriculture and related sector.
| Statement 1 | Statement 2 | Statement 3 | Statement 4 |
| Correct | Correct | Incorrect | Correct |
| Since Agriculture is practiced by exploiting earth’s natural resources, it becomes an integral part of the primary sector | Quarrying comes under the Primary sector. | Banking is a component of the tertiary sector | Mining in a developing country like India comes under the Primary sector itself. However, In Developed countries, it can come under the secondary sector also.
|
Consider the following statements.
How many of the above statements are correct?
Solution (c)
| Statement 1 | Statement 2 | Statement 3 | Statement 4 |
| Incorrect | Correct | Correct | Correct |
| The secondary sector covers activities in which natural products are changed into other forms through ways of manufacturing that we associate with industrial activity.
● The primary sector includes all those activities the end purpose of which consists in exploiting natural resources: agriculture, fishing, forestry, mining, deposits. |
The quaternary sector is the economic activity based on the intellectual or knowledge-based economy. This involves work that conceives, creates, interprets, organizes, directs and transmits with the help and support of scientific and technical knowledge. | Tertiary sector, by itself, do not produce a good but they are an aid or
support for the production process which includes banking, financing, insurance etc. |
Greater the development in primary and secondary sectors, more
would be the demand for the service sector. This is because the production needs supportive services of trading and banking for its growth. |
Solution (c)
| Statement 1 | Statement 2 | Statement 3 | Statement 4 |
| Incorrect | Correct | Correct | Correct |
| The secondary sector covers activities in which natural products are changed into other forms through ways of manufacturing that we associate with industrial activity.
● The primary sector includes all those activities the end purpose of which consists in exploiting natural resources: agriculture, fishing, forestry, mining, deposits. |
The quaternary sector is the economic activity based on the intellectual or knowledge-based economy. This involves work that conceives, creates, interprets, organizes, directs and transmits with the help and support of scientific and technical knowledge. | Tertiary sector, by itself, do not produce a good but they are an aid or
support for the production process which includes banking, financing, insurance etc. |
Greater the development in primary and secondary sectors, more
would be the demand for the service sector. This is because the production needs supportive services of trading and banking for its growth. |
Consider the following statements with respect to National Income.
How many of the above statements are correct?
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| National income is a Net national product at factor cost and not the market price. | NNP is the most appropriate measure of economic growth because it measures Net factors from abroad and depreciation. | National income represents gross national product at market price minus depreciation and indirect taxes plus subsidies. |
Solution (b)
| Statement 1 | Statement 2 | Statement 3 |
| Incorrect | Correct | Correct |
| National income is a Net national product at factor cost and not the market price. | NNP is the most appropriate measure of economic growth because it measures Net factors from abroad and depreciation. | National income represents gross national product at market price minus depreciation and indirect taxes plus subsidies. |
Which of the following are characteristics of ‘Public Goods’?
How many of the above statements are correct?
Solution (b)
Statement 1 |
Statement 2 |
Statement 3 |
Correct |
Correct |
Incorrect |
| Public goods are commodities or services that benefit all members of society and are often provided for free through public taxation | Public goods exhibit a property of non-excludability: this means that when the public good is provided to one person, it is not possible to prevent others from enjoying its consumption – sometimes summarized as: ‘Provision at all means Provision for all’; thus, if a police force, a flood- control dam or a national defense system is successful in offering protection to citizens of a country, once it has been provided it is impossible to exclude anyone within the country from consuming and benefiting from such goods; similarly, for a paved and well-lit public street – nobody can be prevented from enjoying its benefits. | An important issue that is related to public goods is referred to as the free-rider problem. Since public goods are made available to all people–regardless of whether each person individually pays for them. Therefore, the rich and poor need not pay for these goods. |
Solution (b)
Statement 1 |
Statement 2 |
Statement 3 |
Correct |
Correct |
Incorrect |
| Public goods are commodities or services that benefit all members of society and are often provided for free through public taxation | Public goods exhibit a property of non-excludability: this means that when the public good is provided to one person, it is not possible to prevent others from enjoying its consumption – sometimes summarized as: ‘Provision at all means Provision for all’; thus, if a police force, a flood- control dam or a national defense system is successful in offering protection to citizens of a country, once it has been provided it is impossible to exclude anyone within the country from consuming and benefiting from such goods; similarly, for a paved and well-lit public street – nobody can be prevented from enjoying its benefits. | An important issue that is related to public goods is referred to as the free-rider problem. Since public goods are made available to all people–regardless of whether each person individually pays for them. Therefore, the rich and poor need not pay for these goods. |
Consider the following statements about Smishing:
How many of the above statements are correct?
Solution (b)
Solution (b)
Consider the following statements about Chokuwa Rice:
How many of the above statements are correct?
Solution (a)
Solution (a)
Band-e-Amir National Park which was in news recently is located in?
Solution (d)
Solution (d)
BRIGHT STAR-23 recently in news is a?
Solution (a)
As per recent reports, thirty-four countries including India will participate in the joint military exercise, BRIGHT STAR-23.
About BRIGHT STAR-23:-
Solution (a)
As per recent reports, thirty-four countries including India will participate in the joint military exercise, BRIGHT STAR-23.
About BRIGHT STAR-23:-
Consider the following statements about ASTRA Missile:
How many of the above statements are correct?
Solution (b)
Solution (b)
Consider the following statements:
Choose the correct code:
Solution (c)
Solution (c)
Consider the following statements regarding Hangul:
How many of the given statements are correct?
Solution (b)
Solution (b)
Consider the following statements regarding the recent study released by the Reserve Bank of India on investments:
Choose the correct code:
Solution (b)
According to the recent study released by the Reserve Bank of India on investments:
Solution (b)
According to the recent study released by the Reserve Bank of India on investments:
The 10th plenary of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) was held recently. Consider the following statements in this regard:
How many of the given statements are correct?
Solution (b)
About the 10th plenary of IPBES:-
IPBES
Solution (b)
About the 10th plenary of IPBES:-
IPBES
The Hubble Space Telescope captured an image of the ESO 300-16. The ESO 300-16 is a?
Solution (d)
The Hubble Space Telescope captured an image of the ESO 300-16. The ESO 300-16 is an irregular galaxy. It is located at a distance of 28.7 million lightyears in the southern constellation of Eridanus. It is made of many tiny stars all clumped together, surrounded by a diffuse light. In the central, brightest part there is a bubble of blue gas. The galaxy is surrounded by mostly very small and faint objects, though there are bright stars above and to the left of it, and a string of galaxies nearby. Hence option d is correct.
Note:
An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. They have unusual shapes, like toothpicks, rings, or even little groupings of stars.
Solution (d)
The Hubble Space Telescope captured an image of the ESO 300-16. The ESO 300-16 is an irregular galaxy. It is located at a distance of 28.7 million lightyears in the southern constellation of Eridanus. It is made of many tiny stars all clumped together, surrounded by a diffuse light. In the central, brightest part there is a bubble of blue gas. The galaxy is surrounded by mostly very small and faint objects, though there are bright stars above and to the left of it, and a string of galaxies nearby. Hence option d is correct.
Note:
An irregular galaxy is a galaxy that does not have a distinct regular shape, unlike a spiral or an elliptical galaxy. They have unusual shapes, like toothpicks, rings, or even little groupings of stars.
124 chocolates were left when the total chocolates in a box were divided equally among 403 students. How many chocolates would remain if the chocolates from the same box are distributed equally among 31 students?
Solution (a)
Assume that the box had X chocolates and each of the 403 students got ‘A’ chocolates.
X = 124 + 403 × A
Now, 403 = 13 × 31 & 124 = 4 × 31
Clearly, X is divisible by 31. So no chocolates would remain when distributing those among 31 students.
Solution (a)
Assume that the box had X chocolates and each of the 403 students got ‘A’ chocolates.
X = 124 + 403 × A
Now, 403 = 13 × 31 & 124 = 4 × 31
Clearly, X is divisible by 31. So no chocolates would remain when distributing those among 31 students.
Total expenses of a guest house are partly fixed and partly varying linearly with the number of guests arriving. Average expense per guest is Rs. 1000 when there are 50 guests and Rs. 800 when there are 100 guests. What is the average expense (in Rs) per guest when there are 200 guests?
Solution (d)
Let x (Rs) be the fixed cost and y (Rs/guest), the variable cost.
Then,
x + 50y = 50000 ……………(І) and
x + 100y = 80000 ……………(ІІ).
From (І) and (ІІ), we get,
y = 600 and x = 20000.
Now let the average expense of 200 guests be Rs ‘z’,
Since the variable cost of the guest house is linearly related to the number of guests
Therefore, 200 × z = x + 200y = 20000 + 600×200
or z = Rs 700
Solution (d)
Let x (Rs) be the fixed cost and y (Rs/guest), the variable cost.
Then,
x + 50y = 50000 ……………(І) and
x + 100y = 80000 ……………(ІІ).
From (І) and (ІІ), we get,
y = 600 and x = 20000.
Now let the average expense of 200 guests be Rs ‘z’,
Since the variable cost of the guest house is linearly related to the number of guests
Therefore, 200 × z = x + 200y = 20000 + 600×200
or z = Rs 700
Mahesh and Suresh are ranked 7th and 11th respectively from the top of their class. If the number of students in the class is 31, then what will be the sum of the ranks of Mahesh and Suresh from the bottom of the class?
Solution (b)
Total number of students in the class = 31
Rank of Mahesh from top = 7th
Number of students behind Mahesh = 31 – 7 = 24
Rank of Mahesh from bottom = 25th
Rank of Suresh = 11th
Number of students behind Suresh = 31 – 11 = 20
Rank of Suresh from the bottom = 21st
Sum of ranks of Mahesh and Suresh from the bottom = 25 + 21 = 46
Solution (b)
Total number of students in the class = 31
Rank of Mahesh from top = 7th
Number of students behind Mahesh = 31 – 7 = 24
Rank of Mahesh from bottom = 25th
Rank of Suresh = 11th
Number of students behind Suresh = 31 – 11 = 20
Rank of Suresh from the bottom = 21st
Sum of ranks of Mahesh and Suresh from the bottom = 25 + 21 = 46
Consider the following fractions and given statements –
1/2, 2/3, 3/4 and 4/5
S1: If in each fraction, 1 is added to numerator and 2 is added to denominator, then the value of only one fraction will remain unchanged.
S2: If in each fraction, 1 is subtracted from denominator, then the value of all fractions will be the same.
Which of the statements given above is/are correct?
Solution (c)
Given fractions –
1/2, 2/3, 3/4 and 4/5
Considering statement -1,
(1+1)/(2+2), (2+1)/(3+2), (3+1)/(4+2) and (4+1)/(5+2)`
Or 2/4, 3/5, 4/6 and 5/7
Or 1/2, 3/5, 2/3 and 5/7
Clearly, we can see that the value of only one fraction (i.e. 1/2) remained unchanged.
Considering statement -2,
1/(2 – 1), 2/(3 – 1), 3/(4 – 1) and 4/(5 –1)
Or 1/1, 2/2, 3/3 and 4/4
Or 1, 1, 1 and 1
Clearly, we can see that the value of each fraction is the same now.
Hence, both S1 and S2 are correct.
Solution (c)
Given fractions –
1/2, 2/3, 3/4 and 4/5
Considering statement -1,
(1+1)/(2+2), (2+1)/(3+2), (3+1)/(4+2) and (4+1)/(5+2)`
Or 2/4, 3/5, 4/6 and 5/7
Or 1/2, 3/5, 2/3 and 5/7
Clearly, we can see that the value of only one fraction (i.e. 1/2) remained unchanged.
Considering statement -2,
1/(2 – 1), 2/(3 – 1), 3/(4 – 1) and 4/(5 –1)
Or 1/1, 2/2, 3/3 and 4/4
Or 1, 1, 1 and 1
Clearly, we can see that the value of each fraction is the same now.
Hence, both S1 and S2 are correct.
A certain bacteria divides into two every two minutes. If the growth of one single bacterium continues uninterrupted for twenty minutes, how many bacteria would be there at the end of twenty minutes?
Solution (c)
The number of bacteria increases as per the series: 1, 2, 4, 8, 16 ….
Clearly, this is a geometric progression with the common ratio, r = 2.
The number of bacteria at the end of twenty minutes will be given by the eleventh term of the GP.
[Because, the number of bacteria doubles every two minutes and initially there was already one bacterium].
Eleventh Term, Tn = a × r(n-1) = 1 × 2(n-1) = 210 = 1024
Hence, option (c) is the correct answer.
Solution (c)
The number of bacteria increases as per the series: 1, 2, 4, 8, 16 ….
Clearly, this is a geometric progression with the common ratio, r = 2.
The number of bacteria at the end of twenty minutes will be given by the eleventh term of the GP.
[Because, the number of bacteria doubles every two minutes and initially there was already one bacterium].
Eleventh Term, Tn = a × r(n-1) = 1 × 2(n-1) = 210 = 1024
Hence, option (c) is the correct answer.
All the Best
IASbaba