### IBPS Clerk 2018 Question 4

Instructions

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

Question 4

# 400, 800, 880, 896, 899.2, ?

Solution

The pattern here followed is :

400 + 400 = 800

800 + 400 * $$\frac{1}{5}$$ = 800 + 80 = 880

880 + 80 * $$\frac{1}{5}$$ = 880 + 16 = 896

896 + 16 * $$\frac{1}{5}$$ = 896 + 3.2 = 899.2

899.2 + 3.2 * $$\frac{1}{5}$$ = 899.2 + 0.64 = 899.84