# Arithmetic – Kolkata Police SI Previous Year Question Paper

Contents

###### Arithmetic – Kolkata Police SI Previous Year Question Paper

**Kolkata Police SI ****Question Paper – 2022**

- If the diagonal of a square is doubled, then how much time will be its area?

(A) two times

**(B) four times**

(C) three times

(D) same

- Which is the least number that should be added to 2055, so that the sum is exactly divisible by 27?

**(A) 24**

(B) 27

(C) 31

(D) 28

- If the difference between Compound Interest and Simple Interest on a certain sum of money for 2 years. @ 5% p.a. is Rs.122, find the sum of money.

**(A) Rs.48,800**

(B) Rs.15,000

(C) Rs.14,000

(D) Rs.16,000

- The profit after selling a shirt Rs.863 is same as the loss incurred after selling the same shirt for Rs.631. What is the cost price of the shirt?

**(A) Rs.747**

(B) Rs.800

(C) Rs.750

(D) Rs.763

- 14785 – 358 – 4158 – 9514 = ?

(A) 785

(B) 825

**(C) 755**

(D) 721

- The smallest positive integer, which when multiplied by 392 gives a perfect square, is

(A) 7

(B) 3

**(C) 2**

(D) 5

- 12 men construct 1.5 km of road in 7 days. 28 men will construct 12 km of roads in how many days?

(A) 38 days

**(B) 24 days**

(C) 20 days

(D) 28 days

- Present ages of A and B are in the ratio 5 : 6. After seven years this ratio becomes 6 : 7. Then the present age of A in years is

(A) 32

(B) 30

(C) 33

**(D) 35**

- 56% of Y is 182. What is the value of Y?

(A) 330

(B) 364

(C) 350

**(D) 325**

- A can complete a piece of work in 12 days. A and B together can complete the same piece of work in 8 days. In how many days can B alone complete the same piece of work?

(A) 28 days

(B) 18 days

(C) 15 days

**(D) 24 days**

- The driver of an ambulance sees a bus moving in the same direction 40 meter ahead of him. After 20 second, the bus is 60 metre behind. If the speed of the ambulance is 30 km/hr, what is the speed of the bus?

(A) 22 km/hr

**(B) 12 km/hr**

(C) 10 km/hr

(D) 15 km/hr

- The ratio of the length and the breadth of a rectangular plot is 6 : 5. If the breadth of the plot is 34 meter less than the length, what is the perimeter of the rectangular plot?

**(A) 748 m**

(B) 408 m

(C) 374 m

(D) 814 m

- ¾th of ²⁄₉th of ⅕th of a number is 249.6. What is 50% of that number?

(A) 3734

(B) 3794

**(C) 3744**

(D) 3749

- [(12)2×(14)2] ÷ (16)2 = ?

(A) 104.25

(B) 282.24

**(C) 110.25**

(D) 126

- A train, 100 metre long, moving at a speed of 50 km/hr crosses a train 120 meter long coming from the opposite direction in 6 second. The speed of the second train is

(A) 74 km/hr

**(B) 82 km/hr**

(C) 60 km/hr

(D) 70 km/hr

- ( -251 × 21 × -12) ÷ ? = 158.13. Find the value of ‘?’.

(A) 150

**(B) 400**

(C) 250

(D) 300

70.

(A) 43

(B) 73

(C) 63

**(D) 53**

- If the numerator of a fraction is increased by 200% and the denominator of a fraction is increased by 120%, the resultant fraction becomes ⁴⁄₁₁. What is the original fraction ?

(A) ⁶⁄₁₁

(B) ³⁄₁₁

**(C) ⁴⁄****₁₅**

(D) ⁵⁄₁₂

- The average price of 80 mobile phones is Rs.30,000. If the highest and the lowest price mobile phones are sold out, then the average price of remaining 78 mobile phones is Rs.29,500. The cost of the highest price is Rs.80,000. The cost of the lowest price mobile is

(A) Can’t be determined

(B) Rs.15,000

(C) Rs.18,000

**(D) Rs.19,000**

- In certain years a sum of money is doubled itself at 6(¼)% simple interest per annum, then the required time will be

(A) 8 years

(B) 10(⅔) years

**(C) 16 years**

(D) 12(½) years

- 10% discount and then 20% discount in succession is equivalent to total discount of

(A) 24%

**(B) 28%**

(C) 30%

(D) 15%

- Find the sum of 30 natural numbers.

(A) 463

(B) 468

(C) 470

**(D) 465**

- Divide 81 into three parts so that ½ of 1st, ⅓rd of 2nd and ¼ of 3rd are equal.

(A) 30, 27, 24

(B) 27, 18, 30

(C) 36, 26, 18

**(D) 18, 27, 36**

- Which of the two ratios 17 : 18 and 10 : 11 is greater?

(A) Can’t determine

(B) 10 : 11

**(C) 17 : 18**

(D) Both are same

- 729 ml of a mixture contains milk and water in the ratio 7 : 2. How much more water is to be added to get a new mixture containing milk and water in the ratio 7 : 3?

(A) 52 ml

**(B) 81 ml**

(C) 60 ml

(D) 71 ml

### Video Explanation