What will come in place of the question mark (?) in the following number series? 1, 4, 10, 22, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 1, 4, 10, 22, ?

A. 44

B. 46

C. 48

D. 42

Answer: Option B

Solution (By JKExamLibrary)

The pattern is: (1×2)+2=4, (4×2)+2=10, (10×2)+2=22. The next term is (22×2)+2=46.

This question belongs to: Reasoning Number Series

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Question #1

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What will come in place of the question mark (?) in the following number series? 6, 11, 18, 27, 38, 51, ?

A. 64

B. 66

C. 68

D. 62

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Correct Answer: Option B

Explanation:
The differences are: 5, 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 51+15=66.

This question belongs to: Reasoning Number Series

Question #2

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What will come in place of the question mark (?) in the following number series? 2, 6, 14, 30, ?

A. 58

B. 46

C. 62

D. 56

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (2×2)+2=6, (6×2)+2=14, (14×2)+2=30. The next term is (30×2)+2=62.

This question belongs to: Reasoning Number Series

Question #3

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What will come in place of the question mark (?) in the following number series? 4, 6, 12, 14, 28, 30, ?

A. 62

B. 32

C. 60

D. 64

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Correct Answer: Option C

Explanation:
The pattern alternates: +2, ×2, +2, ×2, +2, ×2. The last operation is ×2. Therefore, 30×2=60.[reference:14]

This question belongs to: Reasoning Number Series

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