Question

Find the wrong number in following number series:

3    4    18     72     360      2160     

A 72 Correct Answer Incorrect Answer
B 4 Correct Answer Incorrect Answer
C 360 Correct Answer Incorrect Answer
D 18 Correct Answer Incorrect Answer
E 2160 Correct Answer Incorrect Answer

Solution

3 × 2 =  6 6 × 3 = 18 18 × 4 = 72 72 × 5 = 360 360 × 6 = 2160

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