Missing Numbers Quiz Set 008 | Missing Numbers Type of Questions for Aptitude and Reasoning Exams Set 8 | Online self tests for IBPS, Clerical, SO, SSC, SSB, NTSE, Mental Ability Exams

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Question 1

What is missing?

11.

12.

Soln.
Ans: c

[(6 + 5) - (7 + 4)] = 0, and (7 + 6) - (8 - 4) = 1 ∴ (11 + 2) - (2 + 0) = 11

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Question 2

Directions: One number is missing in the series. You have to understand the pattern of the series and then insert the missing number.

17, 7, 24, 19, 9, 28, ?, 8, 31, 27, 10, 37

Soln.
Ans: d

Each 3rd number is the sum of preceding two numbers. i.e., 17 + 7 = 24, 19 + 9 = 28, 23 + 8 = 31. Hence, the missing number will be 23.

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Question 3

In the following number series, one of the numbers does not fit into the series. Find the wrong number.

2, 3, 6, 15, 37.5, 157.5, 630

37.5

Soln.
Ans: d

Number 37.5 is wrong and should be replaced by 45. The series is (2 X 3)/2 = 3, then (3 X 4)/2 = 6, then (6 X 5)/2 = 15, then (15 X 6) / 2 gives 45, not 37.5.

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Question 4

36.

38.

40.

42.

Soln.
Ans: c

The sequence is as follows : 12(+1), 13 (+2), 15(+3), 18(+4), 22(+5), 27(+6), 33(+7), 40 so on.

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Question 5

What is missing?

10.

15.

32.

12.

Soln.
Ans: c

32. Move in clockwise direction from top left corner that contains 1. Each number is obtained by multiplying the preceding number by one that follows: 1 x 2 = 2; 2 x 2 = 4; 2 x 4 = 8; 4 x 8 = 32;

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