What will come in place of the question mark (?) in the following number series? 8, 15, 24, 35, 48, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 15, 24, 35, 48, ?

A. 59

B. 63

C. 61

D. 65

Answer: Option B

Solution (By JKSSB Mock Tests)

The differences are: 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 48+15=63.

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? 5, 8, 12, 17, ?

A. 23

B. 21

C. 22

D. 24

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Correct Answer: Option A

Explanation:
The differences are: 3, 4, 5. The next difference is 6. Therefore, 17+6=23.

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

A. 21

B. 20

C. 24

D. 18

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Correct Answer: Option A

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 #3

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What will come in place of the question mark (?) in the following number series? 4, 13, 28, 49, ?

A. 74

B. 72

C. 78

D. 76

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Correct Answer: Option D

Explanation:
The differences are: 9, 15, 21. These are increasing by 6. The next difference is 27. Therefore, 49+27=76.

This question belongs to: Reasoning Number Series

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