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Question
Oranges are bought at 100 for ?80 and all of them are sold at ₹80 for ₹100. Find the loss or gain as percent in this transaction.
Solution
∵ C.P. of one orange = ₹ `80/100 = ₹ 0.8`
and S.P. of one orange = `₹ 100/80 = ₹ 1.25`
Clearly, profit = ₹ 1.25 - ₹ 0.8 = ₹ 0.45
and profit 5 = ₹`0.45/0.8 xx 100`
`= 45/8 xx (100 xx 10)/100`
`= 450/8 = 56.25 %`
∴ Profit % = 56.25 %
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