What will come in place of the question mark (?) in the following number series? 10, 17, 26, 37, 50, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 10, 17, 26, 37, 50, ?

A. 61

B. 63

C. 65

D. 67

Answer: Option C

Solution (By JKExamLibrary)

The differences are: 7, 9, 11, 13. These are consecutive odd numbers. The next difference is 15. Therefore, 50+15=65.

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? 5, 11, 21, 35, ?

A. 51

B. 53

C. 49

D. 47

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Correct Answer: Option B

Explanation:
The differences are: 6, 10, 14. These are increasing by 4. The next difference is 18. Therefore, 35+18=53.

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? 4, 12, 24, 40, ?

A. 56

B. 64

C. 60

D. 72

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Correct Answer: Option C

Explanation:
The differences are: 8, 12, 16. These are increasing by 4. The next difference is 20. Therefore, 40+20=60.

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? 10, 20, 30, 40, 50, ?

A. 70

B. 55

C. 65

D. 60

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Correct Answer: Option D

Explanation:
The series increases by 10 each time. Therefore, 50+10=60.

This question belongs to: Reasoning Number Series

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