What will come in place of the question mark (?) in the following number series? 8, 10, 14, 20, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 8, 10, 14, 20, ?

A. 28

B. 32

C. 26

D. 30

Answer: Option A

Solution (By JKExamLibrary)

The differences are: 2, 4, 6. These are increasing by 2. The next difference is 8. Therefore, 20+8=28.

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? 0, 6, 24, 60, 120, ?

A. 180

B. 240

C. 210

D. 360

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Correct Answer: Option C

Explanation:
The pattern is: 1³-1=0, 2³-2=6, 3³-3=24, 4³-4=60, 5³-5=120. The next term is 6³-6=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? 7, 11, 17, 25, ?

A. 37

B. 35

C. 33

D. 39

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Correct Answer: Option B

Explanation:
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

Question #3

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What will come in place of the question mark (?) in the following number series? 4, 9, 16, 25, ?

A. 36

B. 49

C. 30

D. 42

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Correct Answer: Option A

Explanation:
The series consists of squares of consecutive integers: 2²=4, 3²=9, 4²=16, 5²=25. The next number should be the square of 6, which is 36.[reference:2]

This question belongs to: Reasoning Number Series

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