What will come in place of the question mark (?) in the following number series? 7, 11, 17, 25, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 7, 11, 17, 25, ?

A. 33

B. 37

C. 39

D. 35

Answer: Option D

Solution (By JKSSB Mock Tests)

The differences are: 4, 6, 8. These are increasing by 2. The next difference is 10. Therefore, 25+10=35.

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, 150, ?

A. 200

B. 180

C. 210

D. 220

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Correct Answer: Option C

Explanation:
The differences are: 20, 30, 40, 50. These are increasing by 10. The next difference is 60. Therefore, 150+60=210.

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? 11, 14, 19, 26, ?

A. 37

B. 35

C. 33

D. 31

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Correct Answer: Option B

Explanation:
The differences are: 3, 5, 7. These are consecutive odd numbers. The next difference is 9. Therefore, 26+9=35.

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, 10, 30, 68, 130, ?

A. 222

B. 200

C. 220

D. 210

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Correct Answer: Option A

Explanation:
The pattern is: 1³+1=2, 2³+2=10, 3³+3=30, 4³+4=68, 5³+5=130. The next term is 6³+6=222.

This question belongs to: Reasoning Number Series

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