Question
A man bought a watch and sold it at a gain of 40%. If he
had sold it for a gain of only 25%, his profit would have been Rs.225 less. What was the cost price of the watch?Solution
ATQ, Let the cost price be Rs.x. x * 140/100 – x * 125/100 = 225 7x/5 – 5x/4 = 225 28x – 25x = 225 * 20 3x = 4500 x = 1500 The cost price of the watch = x = Rs.1500
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