What will come in place of the question mark (?) in the following number series? 3, 12, 27, 48, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 3, 12, 27, 48, ?

A. 60

B. 75

C. 63

D. 72

Answer: Option B

Solution (By JKExamLibrary)

The pattern is: 3×1²=3, 3×2²=12, 3×3²=27, 3×4²=48. The next term is 3×5²=75.

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, 13, 18, 25, ?

A. 34

B. 36

C. 38

D. 32

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Correct Answer: Option A

Explanation:
The differences are: 3, 5, 7. These are consecutive odd numbers. The next difference is 9. Therefore, 25+9=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? 2, 7, 14, 23, ?, 47

A. 31

B. 34

C. 38

D. 28

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Correct Answer: Option B

Explanation:
The differences are: 5, 7, 9, 11, 13 (consecutive odd numbers). The missing term is 23+11=34.[reference:15]

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, 12, 19, 28, ?

A. 39

B. 41

C. 35

D. 37

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Correct Answer: Option A

Explanation:
The differences are: 5, 7, 9. These are consecutive odd numbers. The next difference is 11. Therefore, 28+11=39.

This question belongs to: Reasoning Number Series

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