Question

Find out the wrong number in the following number series.

18       45        90         235       450       1125        2250

A 235 Correct Answer Incorrect Answer
B 2250 Correct Answer Incorrect Answer
C 450 Correct Answer Incorrect Answer
D 90 Correct Answer Incorrect Answer
E 1125 Correct Answer Incorrect Answer

Solution

18 × 2.5 = 45 45 × 2 = 90 90 × 2.5 =  225 225 × 2 = 450 450 × 2.5 = 1125 1125 × 2 = 2250

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