Question

A shopkeeper buys pencils at 10for rs 10 and sells them at 8 for rs 10.find the profit per cent

Answer 1

he gains rs. 2 profit on 10 so it's (10-8/10)*100=20%

Answer 2

Cost price of pencils =10
Selling price of pencils =8
Cost price>Selling price =Loss
Loss =CP-SP=10-8=2
Loss=2
Loss%=Loss/CP×100
=2/10×100
=5×100
=500.
And;500..!!