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Question

What will come in place of the question mark (?) in each of the following series?

18, 2, 36, 3, 108, 4, ?, 5


A

532

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B

432

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C

512

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D

412

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E

None of these

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Solution

The correct option is B

432


The sequence is a combination of two series:- 18, 36, 108, ?.. and second: 2, 3, 4,..

The pattern followed in first is × 2, × 3, ...

Missing number = 108 × 4 = 432


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