What will come in place of the question mark (?) in the following number series? 8, 24, 48, 80, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 24, 48, 80, ?

A. 128

B. 112

C. 120

D. 100

Answer: Option C

Solution (By JKExamLibrary)

The differences are: 16, 24, 32. These are increasing by 8. The next difference is 40. Therefore, 80+40=120.

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? 2, 5, 10, 17, 26, ?

A. 36

B. 37

C. 35

D. 38

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Correct Answer: Option B

Explanation:
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

Question #2

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What will come in place of the question mark (?) in the following number series? 2, 8, 32, 128, ?

A. 640

B. 512

C. 384

D. 256

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Correct Answer: Option B

Explanation:
Each term is multiplied by 4. Therefore, 128×4=512.

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? 7, 19, 35, 55, 79, ?

A. 103

B. 101

C. 107

D. 99

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Correct Answer: Option C

Explanation:
The differences are: 12, 16, 20, 24. These are increasing by 4. The next difference is 28. Therefore, 79+28=107.

This question belongs to: Reasoning Number Series

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