Find the odd one in the number series given below ?

17, 9, 10, 18.5, 35, 90

A) 9	B) 10
C) 18.5	D) 90

Answer: C) 18.5

Explanation:

The given series pattern follows

17 9 10 18.5 35 90

× 0.5 + 0.5, × 1 + 1, × 1.5 + 1.5, × 2 + 2, × 2.5 + 2.5

So here

17x0.5 + 0.5 = 9

9x1 + 1 = 10

10x1.5 + 1.5 = 16.5

16.5x2 + 2 = 35

35x2.5 + 2.5 = 90

Here the odd man in the given series is 18.5

Subject: Odd Man Out
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