Instructions

Find out the wrong number in the given following sequence.

Question 67

4, 6, 12, 30, 75, 315, 1260

Solution

The pattern of the number series is as given below

6 = 4*1.5

12 = 6*2
30 = 12*2.5
90 = 30*3
315 = 90*3.5
1260 = 315*4

Hence, the number which is wrong in the given series is 75 (it should have been 90)


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