Instructions

In each of these questions a number series is given. In each series ‘’only one’’ number is wrong. Find out the ‘’wrong number’’

Question 158

2, 8, 12, 20, 30, 42, 56

Solution

Instead of 8, it should be 6. Then the difference the consecutive terms will be in AP.

6-2 = 4

12-6 = 6

20-12 = 8

30-20 = 10

42-30 = 12

56-42 = 14

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