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Question
if the selling price of 10 CDs is the same as the cost price of 12 CDs.What is the profit or loss per cent?
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Answer
Let S. P. of 10 CD=CP of 12 CD= Rs. 60
S.P. of 1 CD=Rs. 6
C.P. of 1 CD=Rs. 5
Profit = Rs.(6-5)
= Rs. 1.
Profit % =(1/5) *100
= 20%
