Question
Rehman buys 360 apples for Rs. 800. Some of these apples
are rotten and are thrown away. He sells the remaining apples at Rs. 4.50 each and makes a profit of Rs. 739. The percent of apples thrown away are?Solution
Let the number of bad apples = x Cost price of 360 apples = 800 Selling price (360 - x) apples = 4.5 × (360 - x ) = 1620 – 4.5 x According to the question, 1620 – 4.5 x – 800 = 739 4.5 x = 81 x = 18 Required percent = 18/360 × 100 = 5%
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