5. Finding CP When SP and Profit % are Given

Question:

The selling price of a product is ₹660, and the profit percentage is 10%. Find the cost price.

Solution:
SP = ₹660
Profit % = 10%

CP = SP / (1 + Profit % / 100) = ₹660 / (1 + 10/100) = ₹660 / 1.10 = ₹600