How do I work out 240 reduced by 25% in a discount problem?

A discount means the percentage is taken off the original price, so there are two steps. First find 25% of 240. Since 25% is the same as one quarter, 25% of 240 = 240 ÷ 4 = 60. This 60 rupees is the amount you save, not the final price. The second step is to subtract the discount from the original: 240 − 60 = 180. So the shirt finally costs 180 rupees. A faster method is to realise that after a 25% discount you pay 75% of the price, and 75% of 240 = (75/100) × 240 = 180, giving the same answer in one step. In discount sums, always read whether they want the saving or the final price.