SSC CGL 2012 Tier 1 1 July NZ Evening V

Instructions

In each of the following questions, a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

Question 172

2 6 12 20 30 ? 56

Solution

The pattern followed is that consecutive even numbers starting from 4 are added.

2 + 4 = 6

6 + 6 = 12

12 + 8 = 20

20 + 10 = 30

30 + 12 = 42

42 + 14 = 56

=> Ans - (D)

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