Question

The cost price of 15 tables is equal to the selling price of 20 tables. Find the loss per cent.

Answer 1

Loss= Cost price(CP)- Selling price(SP)

Loss
percentage ={(CP-SP)/CP}*100
here,
CP of 15 tables=SP of 20 tables
there fore,
CP of 20 tables =SP of 15 tables

Loss
percentage ={(20-15)/20}*100
. ={5/20}*100
={1/4}*100
=0.25*100
=25%