What will come in place of the question mark (?) in the following number series? 50, 49, 47, 44, ? MCQ with Answer and Explanation

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What will come in place of the question mark (?) in the following number series? 50, 49, 47, 44, ?

A. 42

B. 40

C. 41

D. 43

Answer: Option B

Solution (By JKSSB Mock Tests)

The differences are: -1, -2, -3. The next difference is -4. Therefore, 44-4=40.

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? 14, 21, 28, 35, ?

A. 42

B. 45

C. 40

D. 41

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Correct Answer: Option A

Explanation:
The series increases by 7 each time. Therefore, 35+7=42.

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? 3, 12, 48, 192, ?

A. 960

B. 384

C. 768

D. 576

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Correct Answer: Option C

Explanation:
Each term is multiplied by 4. Therefore, 192×4=768.

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, 6, 12, 14, 28, 30, ?

A. 32

B. 64

C. 60

D. 62

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Correct Answer: Option C

Explanation:
The pattern alternates: +2, ×2, +2, ×2, +2, ×2. The last operation is ×2. Therefore, 30×2=60.[reference:14]

This question belongs to: Reasoning Number Series

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