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 165

2, 20, 56, 110, ? .

Solution

Let the missing number be y

here the given sequence is 2, 20, 56, 110, y

we can the see the hidden pattern as :

20 -2 = 18 x 1

56 - 20 = 18 x 2

110 - 56 = 18 x 3

as we can see the difference in every succesive case is increasing multiple of 18

hence , y - 110 = 18 x 4 = 72

y = 110 + 72 = 182


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