Question
Atul buys an equal number of oranges at two rates: 3 for
₹13 and 5 for ₹20. He sells all the oranges at a rate of 4 for ₹15. Determine his overall percentage of profit or loss.Solution
Let he buys total number of oranges (LCM of 3, 5, 4) = 60 (30-30 of both type) Costing of 30 oranges at 3 for Rs 13 = Rs 130 Costing of 30 oranges at 5 for Rs 20 = Rs 120 Total cost price of 60 oranges = 130+120 = Rs 250 Selling price of 60 oranges at 4 for Rs 15 = 225 
= 10% loss
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