By selling a bicycle for ₹4,590, a store owner loses 15%. What was the cost price?

💡 Solution & Explanation

A 15% loss means the selling price is 85% of the cost price. So cost price = ₹4,590 × 100 ÷ 85 = ₹5,400. Check: 15% of ₹5,400 is ₹810, and ₹5,400 − ₹810 = ₹4,590. Adding 15% to ₹4,590 gives ₹5,278.5, which is wrong because the loss is a percentage of the cost, not of the selling price.