What will come in place of the question mark (?) in the following number series? 3, 6, 12, 24, 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, 6, 12, 24, 48, ?

A. 108

B. 72

C. 84

D. 96

Answer: Option D

Solution (By JKSSB Mock Tests)

Each term is multiplied by 2. Therefore, 48×2=96.

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, 10, 30, 68, 130, ?

A. 220

B. 200

C. 222

D. 210

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Correct Answer: Option C

Explanation:
The pattern is: 1³+1=2, 2³+2=10, 3³+3=30, 4³+4=68, 5³+5=130. The next term is 6³+6=222.

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? 8, 10, 14, 20, ?

A. 26

B. 32

C. 28

D. 30

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Correct Answer: Option C

Explanation:
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

Question #3

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What will come in place of the question mark (?) in the following number series? 3, 4, 7, 11, 18, ?

A. 31

B. 29

C. 27

D. 33

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Correct Answer: Option B

Explanation:
This is a Fibonacci-like series where each term is the sum of the previous two terms. 7+11=18, 11+18=29. The next term is 29.

This question belongs to: Reasoning Number Series

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