What will come in place of the question mark (?) in the following number series? 2, 5, 10, 17, 26, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 2, 5, 10, 17, 26, ?

A. 37

B. 35

C. 38

D. 36

Answer: Option A

Solution (By JKSSB Mock Tests)

The pattern is: 1²+1=2, 2²+1=5, 3²+1=10, 4²+1=17, 5²+1=26. The next term is 6²+1=37.

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? 4, 11, 21, 34, ?

A. 50

B. 49

C. 48

D. 47

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Correct Answer: Option A

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

Question #2

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What will come in place of the question mark (?) in the following number series? 2, 3, 5, 7, ?

A. 9

B. 11

C. 8

D. 10

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Correct Answer: Option B

Explanation:
The given series consists of consecutive prime numbers. The prime numbers in order are 2, 3, 5, 7, 11, 13... Therefore, the next prime number after 7 is 11.[reference:0]

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? 8, 15, 24, 35, ?

A. 46

B. 50

C. 52

D. 48

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Correct Answer: Option D

Explanation:
The differences are: 7, 9, 11. These are increasing by 2. The next difference is 13. Therefore, 35+13=48.

This question belongs to: Reasoning Number Series

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