Question

if the credit price of 5 copies of a book is equal to the cash prize of six copies of the same book what is the rate of discount?note:from present worth and discount ​

Answer 1

16.67%

Explanation:

Let X be the credit price per book:

`Total \ Credit \ Price=5X`

Let Y be the cash price per book:

`Total \ Cash \ Price=6Y`

#The net credit price is equal to the net cash price:

`5X=6Y\\\\Y=(5)/(6)X`

-For each cash buy, you pay 1/6 less than for each credit buy which is the discount rate:

`d=(1-(5)/(6))* 100\%\\\\=16.67\%`

Hence, the discount rate is 16.67%