A toy merchant announces 25% rebate in prices of balls. If one needs to have a rebate of Rs. 40, then how many balls each costing Rs. 32, he should purchase ?

A. 5

B. 6

C. 7

D. 10

Answer: Option A

Solution(By Examveda Team)

Rebate on one ball :
= 25% of Rs. 32
= Rs. $$\left( {\frac{{25}}{{100}} \times 32} \right)$$
= Rs. 8
∴ Required number of balls :
= $$\frac{40}{8}$$
= 5