### SSC CPO 2 July 2017 Afternoon Shift Question 18

Instructions

In the following question, select the missing number from the given series.

Question 18

# 2.2, 14.8, 40, 90.4, ?

Solution

Numbers of the form : $$12.6\times(2)^n$$ are added, where $$n$$ is a whole number.

2.2 $$+$$ $$12.6\times(2)^0$$ = 14.8

14.8 $$+$$ $$12.6\times(2)^1$$ = 40

40 $$+$$ $$12.6\times(2)^2$$ = 90.4

90.4 $$+$$ $$12.6\times(2)^3$$ = 191.2

=> Ans - (A)