What will come in place of the question mark (?) in the following number series? 14, 27, 42, 59, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 14, 27, 42, 59, ?

A. 76

B. 82

C. 78

D. 80

Answer: Option C

Solution (By JKSSB Mock Tests)

The differences are: 13, 15, 17. These are increasing by 2. The next difference is 19. Therefore, 59+19=78.

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? 2, 6, 14, 30, ?

A. 58

B. 46

C. 62

D. 56

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Correct Answer: Option C

Explanation:
Each term is obtained by multiplying by 2 and adding 2. (2×2)+2=6, (6×2)+2=14, (14×2)+2=30. The next term is (30×2)+2=62.

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? 1, 6, 15, 28, ?

A. 45

B. 42

C. 48

D. 40

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Correct Answer: Option A

Explanation:
The pattern is: 1×1=1, 2×3=6, 3×5=15, 4×7=28. The next term is 5×9=45.

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, 12, 30, 56, ?

A. 90

B. 100

C. 110

D. 80

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Correct Answer: Option A

Explanation:
The pattern is: 1×2=2, 3×4=12, 5×6=30, 7×8=56. The next term is 9×10=90.

This question belongs to: Reasoning Number Series

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