Question

A retailer buys books from a wholesaler at the rate of Rs.300 per book and marked them at Rs.400 each. He allows some discount and gets a profit of 30% on the cost price. What percent discount does he allow to his customers?​

Answer 1

Answer:

2.5%

Step-by-step explanation:

let number of book is 1

CP=300

MP=400

he allows some discount and gets a profit of 30%of CP

30%of 300=90

Profit=90

Profit=SP-CP

90=SP-300

SP=390

let discount be x

(100-x)%of MP=SP

(100-X)% of 400=390

x=2.5%