A shopkeeper purchases 15 mangoes for ₹10 and sells them at 10 mangoes for ₹15. Thus, he earns a profit of?

Explanation

Cost price of one mango:

(₹10)/(15)=₹2/3.

Selling price of one mango:

(₹15)/(10)=₹3/2.

Profit per mango:

3/2-2/3=5/6.

Therefore,

Profit %
=(5/6)/(2/3)×100
=5/4×100
=125%.