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UPSC Insta–DART (Daily Aptitude and Reasoning Test) 23 Oct 2025

Kartavya Desk Staff

Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.

Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).

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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too. We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.

Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).

Wish you all the best ! 🙂

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• Question 1 of 6 1. Question A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share? (a) Rs. 500 (b) Rs. 1500 (c) Rs. 2000 (d) None of these Correct Answer: Option C Explanation: Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. Then, 4x – 3x = 1000 x = 1000. B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000. Incorrect Answer: Option C Explanation: Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. Then, 4x – 3x = 1000 x = 1000. B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.

#### 1. Question

A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B’s share?

• (a) Rs. 500

• (b) Rs. 1500

• (c) Rs. 2000

• (d) None of these

Answer: Option C

Explanation:

Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively.

Then, 4x – 3x = 1000

x = 1000.

B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.

Answer: Option C

Explanation:

Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively.

Then, 4x – 3x = 1000

x = 1000.

B’s share = Rs. 2x = Rs. (2 x 1000) = Rs. 2000.

• Question 2 of 6 2. Question Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats? (a) 2 : 3 : 4 (b) 6 : 7 : 8 (c) 6 : 8 : 9 (d) None of these Correct Answer: Option A Explanation: Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively. Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x). 140 x 5x , 150 x 7x and 175 x 8x 100 100 100 7x, 21x and 14x. 2 The required ratio = 7x : 21x : 14x 2 14x : 21x : 28x 2 : 3 : 4. Incorrect Answer: Option A Explanation: Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively. Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x). 140 x 5x , 150 x 7x and 175 x 8x 100 100 100 7x, 21x and 14x. 2 The required ratio = 7x : 21x : 14x 2 14x : 21x : 28x 2 : 3 : 4.

#### 2. Question

Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

• (a) 2 : 3 : 4

• (b) 6 : 7 : 8

• (c) 6 : 8 : 9

• (d) None of these

Answer: Option A

Explanation:

Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.

Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).

| | 140 | x 5x | | , | | 150 | x 7x | | and | | 175 | x 8x |

100 | 100 | 100

7x, | 21x | and 14x.

2

The required ratio = 7x : | 21x | : 14x

2

14x : 21x : 28x

2 : 3 : 4.

Answer: Option A

Explanation:

Originally, let the number of seats for Mathematics, Physics and Biology be 5x, 7x and 8x respectively.

Number of increased seats are (140% of 5x), (150% of 7x) and (175% of 8x).

| | 140 | x 5x | | , | | 150 | x 7x | | and | | 175 | x 8x |

100 | 100 | 100

7x, | 21x | and 14x.

2

The required ratio = 7x : | 21x | : 14x

2

14x : 21x : 28x

2 : 3 : 4.

• Question 3 of 6 3. Question In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is: (a) 20 litres (b) 30 litres (c) 40 litres (d) 60 litres Correct Answer: Option D Explanation: Quantity of milk = 60 x 2 litres = 40 litres. 3 Quantity of water in it = (60- 40) litres = 20 litres. New ratio = 1 : 2 Let quantity of water to be added further be x litres. Then, milk : water = 40 . 20 + x Now, 40 = 1 20 + x 2 20 + x = 80 x = 60. Quantity of water to be added = 60 litres. Incorrect Answer: Option D Explanation: Quantity of milk = 60 x 2 litres = 40 litres. 3 Quantity of water in it = (60- 40) litres = 20 litres. New ratio = 1 : 2 Let quantity of water to be added further be x litres. Then, milk : water = 40 . 20 + x Now, 40 = 1 20 + x 2 20 + x = 80 x = 60. Quantity of water to be added = 60 litres.

#### 3. Question

In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:

• (a) 20 litres

• (b) 30 litres

• (c) 40 litres

• (d) 60 litres

Answer: Option D

Explanation:

Quantity of milk = | | 60 x | 2 | litres = 40 litres.

3

Quantity of water in it = (60- 40) litres = 20 litres.

New ratio = 1 : 2

Let quantity of water to be added further be x litres.

Then, milk : water = | | 40 | | .

20 + x

Now, | | 40 | | = | 1

20 + x | 2

20 + x = 80

Quantity of water to be added = 60 litres.

Answer: Option D

Explanation:

Quantity of milk = | | 60 x | 2 | litres = 40 litres.

3

Quantity of water in it = (60- 40) litres = 20 litres.

New ratio = 1 : 2

Let quantity of water to be added further be x litres.

Then, milk : water = | | 40 | | .

20 + x

Now, | | 40 | | = | 1

20 + x | 2

20 + x = 80

Quantity of water to be added = 60 litres.

• Question 4 of 6 4. Question The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio? (a) 8 : 9 (b) 17 : 18 (c) 21 : 22 (d) Cannot be determined Correct Answer: Option C Explanation: Originally, let the number of boys and girls in the college be 7x and 8x respectively. Their increased number is (120% of 7x) and (110% of 8x). 120 x 7x and 110 x 8x 100 100 42x and 44x 5 5 The required ratio = 42x : 44x = 21 : 22. Incorrect Answer: Option C Explanation: Originally, let the number of boys and girls in the college be 7x and 8x respectively. Their increased number is (120% of 7x) and (110% of 8x). 120 x 7x and 110 x 8x 100 100 42x and 44x 5 5 The required ratio = 42x : 44x = 21 : 22.

#### 4. Question

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

• (b) 17 : 18

• (c) 21 : 22

• (d) Cannot be determined

Answer: Option C

Explanation:

Originally, let the number of boys and girls in the college be 7x and 8x respectively.

Their increased number is (120% of 7x) and (110% of 8x).

| | 120 | x 7x | | and | | 110 | x 8x |

100 | 100

| 42x | and | 44x

5 | 5

The required ratio = | | 42x | : | 44x | | = 21 : 22.

Answer: Option C

Explanation:

Originally, let the number of boys and girls in the college be 7x and 8x respectively.

Their increased number is (120% of 7x) and (110% of 8x).

| | 120 | x 7x | | and | | 110 | x 8x |

100 | 100

| 42x | and | 44x

5 | 5

The required ratio = | | 42x | : | 44x | | = 21 : 22.

• Question 5 of 6 5. Question Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit’s salary? (a) Rs. 17,000 (b) Rs. 20,000 (c) Rs. 25,500 (d) Rs. 38,000 Correct Answer: Option D Explanation: Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively. Then, 2x + 4000 = 40 3x + 4000 57 57(2x + 4000) = 40(3x + 4000) 6x = 68,000 3x = 34,000 Sumit’s present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000. Incorrect Answer: Option D Explanation: Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively. Then, 2x + 4000 = 40 3x + 4000 57 57(2x + 4000) = 40(3x + 4000) 6x = 68,000 3x = 34,000 Sumit’s present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000.

#### 5. Question

Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit’s salary?

• (a) Rs. 17,000

• (b) Rs. 20,000

• (c) Rs. 25,500

• (d) Rs. 38,000

Answer: Option D

Explanation:

Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.

Then, | 2x + 4000 | = | 40

3x + 4000 | 57

57(2x + 4000) = 40(3x + 4000)

6x = 68,000

3x = 34,000

Sumit’s present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000.

Answer: Option D

Explanation:

Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.

Then, | 2x + 4000 | = | 40

3x + 4000 | 57

57(2x + 4000) = 40(3x + 4000)

6x = 68,000

3x = 34,000

Sumit’s present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000.

• Question 6 of 6 6. Question Read the following passages and answer the questions that follow. Your answer should be based on the passage only Passage 1— In high-income economies, a national minimum wage policy does raise incomes of low-wage workers, given better enforcement and governance standards. It also increases demand, with the propensity to consume higher at lower income levels. The Indian Constitution defines a ‘living wage’, and we have the Minimum Wages Act, 1948. But compliance has been weak, as abundant underemployed farm labour depresses wages. On the basis of above passage, following assumptions have been made: Low wages, constrains aggregate demand and hurt welfare of workers High wages can lead to unemployment since firms would be unable to pay more wages Which of the above assumptions is/are valid? (a) . 1 only (b) 2 only (c) Both 1 & 2 (d) Neither 1 nor 2 Correct Answer : A Assumption is an argument or imaginary claim that can be surely based on the claims given in the passage. The passage informs us various positive consequences of having minimum wages i.e. wages that are fair and adequate, It will increase income of workers—so low wages means welfare of workers is hit High wage means high consumption and so high demand—so low wage affects demand Statement 1 is therefore correct There is no mentioning of link between high wages and unemployment. While it is a normal perception, it is not given in the passage, hence it cannot be assumed. 2 is wrong. This is not a premise based on the passage. Hence, 1 only or A is the answer. Incorrect Answer : A Assumption is an argument or imaginary claim that can be surely based on the claims given in the passage. The passage informs us various positive consequences of having minimum wages i.e. wages that are fair and adequate, It will increase income of workers—so low wages means welfare of workers is hit High wage means high consumption and so high demand—so low wage affects demand Statement 1 is therefore correct There is no mentioning of link between high wages and unemployment. While it is a normal perception, it is not given in the passage, hence it cannot be assumed. 2 is wrong. This is not a premise based on the passage. Hence, 1 only or A is the answer.

#### 6. Question

Read the following passages and answer the questions that follow. Your answer should be based on the passage only

Passage 1—

In high-income economies, a national minimum wage policy does raise incomes of low-wage workers, given better enforcement and governance standards. It also increases demand, with the propensity to consume higher at lower income levels. The Indian Constitution defines a ‘living wage’, and we have the Minimum Wages Act, 1948. But compliance has been weak, as abundant underemployed farm labour depresses wages.

• On the basis of above passage, following assumptions have been made:

• Low wages, constrains aggregate demand and hurt welfare of workers

• High wages can lead to unemployment since firms would be unable to pay more wages

Which of the above assumptions is/are valid?

• (a) . 1 only

• (b) 2 only

• (c) Both 1 & 2

• (d) Neither 1 nor 2

Answer : A

Assumption is an argument or imaginary claim that can be surely based on the claims given in the passage. The passage informs us various positive consequences of having minimum wages i.e. wages that are fair and adequate,

• It will increase income of workers—so low wages means welfare of workers is hit

• High wage means high consumption and so high demand—so low wage affects demand

Statement 1 is therefore correct

There is no mentioning of link between high wages and unemployment. While it is a normal perception, it is not given in the passage, hence it cannot be assumed. 2 is wrong.

This is not a premise based on the passage. Hence, 1 only or A is the answer.

Answer : A

Assumption is an argument or imaginary claim that can be surely based on the claims given in the passage. The passage informs us various positive consequences of having minimum wages i.e. wages that are fair and adequate,

• It will increase income of workers—so low wages means welfare of workers is hit

• High wage means high consumption and so high demand—so low wage affects demand

Statement 1 is therefore correct

There is no mentioning of link between high wages and unemployment. While it is a normal perception, it is not given in the passage, hence it cannot be assumed. 2 is wrong.

This is not a premise based on the passage. Hence, 1 only or A is the answer.

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