### IBPS Clerk 2018 Question 5

Instructions

What will come in place of the question mark (?) in the following number series ?

Question 5

# 40, 20, 30, 75, 262.5, ?

Solution

The pattern here followed is :

40 * $$\frac{1}{2}$$ = 20

20 * $$\frac{3}{2}$$ = 30

30 * $$\frac{5}{2}$$ = 75

75 * $$\frac{7}{2}$$ = 262.5

262.5 * $$\frac{9}{2}$$ = 1181.25