By selling a bicycle for ₹3,825, 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 = ₹3,825 × 100 ÷ 85 = ₹4,500. Check: 15% of ₹4,500 is ₹675, and ₹4,500 − ₹675 = ₹3,825. Adding 15% to ₹3,825 gives ₹4,398.75, which is wrong because the loss is a percentage of the cost, not of the selling price.