In the following number series, a wrong number is given. Find out that wrong number.

4 2 3.5 7.5 26.25 118.125

(a) 118.125 (b) 26.25 (c) 3.5 (d) 2 (e) 7.5

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1 Answers

(c) The series is based on the following pattern
4 × .5 = 2
2 × 1.5 = 3 ; not 3.5
3 × 2.5 = 7.5
7.5 × 3.5 = 26.25
26.25 × 4.5 = 118.125
Clearly, 3.5 should be replaced by 3.

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