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What should come in place of question mark ‘?’ in the following number series? 12, 12, 18, 36, 90, ?

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What should come in place of question mark ‘?’ in the following number series?

12, 12, 18, 36, 90, ?


1). 270
2). 280
3). 250
4). 235


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1 answers

3 vote
Answered by on | Votes 3 |

The pattern of the given series is:

⇒ 12 × 1 = 12

⇒ 12 × 1.5 = 18

⇒ 18 × 2 = 36

⇒ 36 × 2.5 = 90

⇒ 90 × 3 = 270 = ?

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