West Bengal Police Sub Inspector exam paper 15 December 2019 (Answer Key)


21. The sum of 3 numbers is 136. If the ratios between first and second be 2:3 and that between second and third is 5:3,then the second number is
(A) 48
(B) 60
(C) 40
(D) 52

22. 15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs.each would 21 women take, if 3 women do as much work as 2 men ?
(A) 20
(B) 30
(C) 18
(D) 25

23. How many seconds a train 100 meters in length running at the rate of 36 km/hr will take to pass a certain telegraph post ?
(A) 12 seconds
(B) 18 seconds
(C) 10 seconds
(D) 15 seconds

24. ‘A’ can complete a piece of work in 12 days. ‘A’ and ‘B’ together can complete the same piece of work in 8 days. How many days can ‘B’ alone complete the same piece of work ?
(A) 18 days
(B) 28 days
(C) 15 days
(D) 24 days

25. The sum of two digits of a two digit number is 12 and the difference between the two digits of the two digit number is 6. What is the two digit number?
(A) 75


(B) 93
(C) 60
(D) 84

26. Five bells begin to toll together at intervals of 9 seconds, 6 seconds, 4 seconds, 10 seconds and 8 seconds respectively. Starting together, how many times will the bells toll together in a span of 1 hour?
(A) 8
(B) 12
(C) 5
(D) 10

27. Sachin Tendulkar has a certain average for 11 innings. In the 12th innings he scores 120 runs and there by increases his average by 5 runs, his new average is
(A) 62
(B) 66
(C) 60
(D) 65

28. The wheel of a motor car makes 1000 revolutions in moving 440 m. The diameter (in meter) of the wheel is
(A) 0.34
(B) 0.14
(C) 0.44
(D) 0.24

29. Find the odd one out
(A) Carl Lewis
(B) Usain Bolt
(C) Ben Johnson
(D) Emil Jacktopek

30. 7:49 :: 17:?
(A) 288
(B) 324
(C) 119
(D) 290

31. Which of the following words will appear fourth in the dictionary?
(A) Sanatorium
(B) Sanction
(C) Sanctity
(D) Sanskrit

32. Gopal said, pointing to Govind His father is my father’s only son’. How is Gopal related to Govind?
(A) Grandson
(B) Son


(C) Grandfather
(D) Father

33. Molly travelled from point A to point B which is 5 feet. He then travelled 6 feet to his right and then turned to left and went 4 feet. Finally, he again went 6 feet to his left. How far is he from the point B now?
(A) 6 feet
(B) 4 feet
(C) 10 feet
(D) 5 feet

34. Vinod introduces Vishal as the son of the only brother of his father’s wife. How is Vinod related to Vishal ?
(A) Son
(B) Brother
(C) Uncle
(D) Cousin

35. Sita is older to Swapna. Lavanya is older to Swapna but younger than Sita. Varna is younger than both Hari and Swapna. Swapna is older to Hari. Who is the youngest ?
(A) Varna
(B) Hari
(C) Sita
(D) Lavanya

36. If MEKLFis coded as 91782 and LLLJK as 88867, then how can IGHED be coded ?
(A) 64521
(B) 53410
(C) 97854
(D) 75632

37. Select the missing number from the given responses:
question number 37
(A) 512
(B) 1000
(C) 343
(D) 729

38. What should come in the place of question mark (?) in the following number series ?
2, 10, 30, ?, 130, 222
(A) 95
(B) 42
(C) 125
(D) 68

39. How many such ‘R’s are there in the following letter series which are immediately preceded by ‘M’ and immediately followed by ‘K’?
NPKRMDCNMRKPQKRNMR KRMKPRM


(A) Four
(B) Five
(C) Three
(D) Two

40. If 84 x 13 = 8 and 37 x 13 = 6 then 56 x 22 =
(A) 7
(B) 9
(C) 6
(D) 8

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