What will come in place of the question mark (?) in the following number series? 0, 7, 26, 63, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 0, 7, 26, 63, ?

A. 125

B. 124

C. 127

D. 126

Answer: Option B

Solution (By JKSSB Mock Tests)

The pattern is: 1³-1=0, 2³-1=7, 3³-1=26, 4³-1=63. The next term is 5³-1=124.

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, 13, 28, 49, ?

A. 72

B. 76

C. 74

D. 78

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Correct Answer: Option B

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

Question #2

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What will come in place of the question mark (?) in the following number series? 6, 14, 30, 62, ?

A. 122

B. 128

C. 126

D. 124

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (6×2)+2=14, (14×2)+2=30, (30×2)+2=62. The next term is (62×2)+2=126.

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? 11, 13, 17, 19, 23, ?

A. 25

B. 27

C. 31

D. 29

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Correct Answer: Option D

Explanation:
The series consists of consecutive prime numbers. The next prime number after 23 is 29.

This question belongs to: Reasoning Number Series

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