Q. A shopkeeper allows a discount of 25% and 15% on the written price and another shopkeeper allows a discount of 30% and 10% on the written price. Which discount is profitable for the customer?
TLT: Let, Full price= 100%
I> 25% and 15%= 25+15-25 X 15/ 100
= 40-3.75= 36.25%
II> 30% and 10%= 30+10-30X10/ 100
=40-3= 37%
II Discount is more profitable.