What will come in place of the question mark (?) in the following number series? 14, 27, 42, 59, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 14, 27, 42, 59, ?

A. 78

B. 82

C. 76

D. 80

Answer: Option A

Solution (By JKExamLibrary)

The differences are: 13, 15, 17. These are increasing by 2. The next difference is 19. Therefore, 59+19=78.

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? 1, 1, 2, 3, 5, 8, 13, ?

A. 20

B. 18

C. 24

D. 21

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Correct Answer: Option D

Explanation:
This is a Fibonacci series where each term is the sum of the previous two terms. 13+8=21.[reference:9]

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? 1, 2, 5, 14, ?

A. 42

B. 43

C. 44

D. 41

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Correct Answer: Option D

Explanation:
Each term is obtained by multiplying by 3 and subtracting 1. (1×3)-1=2, (2×3)-1=5, (5×3)-1=14. The next term is (14×3)-1=41.

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, 11, 21, 34, ?

A. 49

B. 48

C. 50

D. 47

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Correct Answer: Option C

Explanation:
The differences are: 7, 10, 13. These are increasing by 3. The next difference is 16. Therefore, 34+16=50.

This question belongs to: Reasoning Number Series

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