What will come in place of the question mark (?) in the following number series? 41, 43, 47, 53, 59, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 41, 43, 47, 53, 59, ?

A. 64

B. 67

C. 65

D. 61

Answer: Option D

Solution (By JKExamLibrary)

The series consists of consecutive prime numbers. The prime number immediately following 59 is 61.[reference:4]

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? 3, 11, 27, 59, 123, ?

A. 253

B. 251

C. 249

D. 247

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Correct Answer: Option B

Explanation:
Each term is obtained by multiplying by 2 and adding 5. (3×2)+5=11, (11×2)+5=27, (27×2)+5=59, (59×2)+5=123. The next term is (123×2)+5=251.

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? 10, 24, 42, 64, 90, ?

A. 116

B. 112

C. 110

D. 120

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Correct Answer: Option D

Explanation:
The differences are: 14, 18, 22, 26. These are increasing by 4. The next difference is 30. Therefore, 90+30=120.

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, 7, 14, 23, ?, 47

A. 28

B. 31

C. 34

D. 38

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Correct Answer: Option C

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

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