What will come in place of the question mark (?) in the following number series? 4, 9, 16, 25, 36, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 4, 9, 16, 25, 36, ?

A. 49

B. 42

C. 44

D. 56

Answer: Option A

Solution (By JKSSB Mock Tests)

The series consists of squares of consecutive integers: 2², 3², 4², 5², 6². The next term is 7²=49.

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? 20, 10, 5, 2.5, ?

A. 0.75

B. 2

C. 1.25

D. 1.5

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Correct Answer: Option C

Explanation:
Each term is divided by 2. Therefore, 2.5/2=1.25.

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. 124

D. 126

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Correct Answer: Option D

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? 4, 8, 16, 32, ?

A. 48

B. 64

C. 56

D. 72

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Correct Answer: Option B

Explanation:
Each term is multiplied by 2. Therefore, 32×2=64.

This question belongs to: Reasoning Number Series

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