What will come in place of the question mark (?) in the following number series? 8, 18, 32, 50, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 18, 32, 50, ?

A. 74

B. 68

C. 72

D. 70

Answer: Option C

Solution (By JKExamLibrary)

The pattern is: 2×2²=8, 2×3²=18, 2×4²=32, 2×5²=50. The next term is 2×6²=72.

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? 6, 10, 16, 24, ?

A. 34

B. 32

C. 30

D. 36

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Correct Answer: Option A

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 #2

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What will come in place of the question mark (?) in the following number series? 9, 10, 12, 15, 19, ?

A. 25

B. 22

C. 24

D. 23

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Correct Answer: Option C

Explanation:
The differences are: 1, 2, 3, 4. The next difference is 5. Therefore, 19+5=24.

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, 3, 6, 10, 15, ?

A. 20

B. 18

C. 21

D. 17

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Correct Answer: Option C

Explanation:
The differences between consecutive terms are: 3-1=2, 6-3=3, 10-6=4, 15-10=5. The differences are increasing by 1 each time. The next difference should be 6. Therefore, the next term is 15+6=21.[reference:1]

This question belongs to: Reasoning Number Series

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