What will come in place of the question mark (?) in the following number series? 1, 8, 27, 64, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 1, 8, 27, 64, ?

A. 121

B. 125

C. 100

D. 216

Answer: Option B

Solution (By JKExamLibrary)

The series consists of cubes of consecutive integers: 1³, 2³, 3³, 4³. The next term is 5³=125.

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? 10, 30, 60, 100, ?

A. 150

B. 140

C. 120

D. 160

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Correct Answer: Option A

Explanation:
The differences are: 20, 30, 40. These are increasing by 10. The next difference is 50. Therefore, 100+50=150.

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, 14, 30, 50, 74, ?

A. 94

B. 102

C. 96

D. 98

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Correct Answer: Option B

Explanation:
The differences are: 12, 16, 20, 24. These are increasing by 4. The next difference is 28. Therefore, 74+28=102.

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? 2, 4, 12, 48, ?

A. 240

B. 288

C. 192

D. 144

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Correct Answer: Option A

Explanation:
The pattern is: 2×2=4, 4×3=12, 12×4=48. The multipliers are increasing by 1. The next multiplier is 5. Therefore, 48×5=240.

This question belongs to: Reasoning Number Series

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