Discussion of Question with ID = 105 under Missing-Numbers

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Question

One number is wrong in the series. Find the wrong number.

2, 3, 9, 27, 112, 565, 3396

A

565

B

9

C

112

D

27

Soln.
Ans: b

Series follows the pattern: 2 × 1 + 1 = 3, 3 × 2 + 2 = 8, 8 × 3 + 3 = 27, 27 × 4 + 4 = 112 and so on. Hence, the number 9 should be replaced by 8. So 9 is wrong.


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