What will come in place of the question mark (?) in the following number series? 8, 27, 64, 125, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 27, 64, 125, ?

A. 144

B. 256

C. 196

D. 216

Answer: Option D

Solution (By JKSSB Mock Tests)

The series consists of cubes of consecutive integers starting from 2: 2³, 3³, 4³, 5³. The next term is 6³=216.

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, 4, 9, 16, 25, ?

A. 49

B. 35

C. 36

D. 30

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Correct Answer: Option C

Explanation:
The series consists of squares of consecutive integers: 1², 2², 3², 4², 5². The next term is 6²=36.

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, 10, 16, 24, ?

A. 32

B. 30

C. 36

D. 34

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Correct Answer: Option D

Explanation:
The differences are: 4, 6, 8. These are increasing by 2. The next difference is 10. Therefore, 24+10=34.

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? 1, 2, 6, 24, 120, ?

A. 480

B. 720

C. 840

D. 600

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Correct Answer: Option B

Explanation:
The pattern is: 1×1=1, 1×2=2, 2×3=6, 6×4=24, 24×5=120. The next term is 120×6=720.

This question belongs to: Reasoning Number Series

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