Question

The selling price of 12 pens are equal to the cost price of 15 pens . find the gain per cent
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Answer 1

Answer:

Let the CP of each pen be Rs. x

Then,

CP of 12 pens=₹12

DP of 12 pens =CP of 15 pens=₹15

now, gain=Space=₹(15-12)=₹3

gain%=gain/cp*100

=(3/12*100)%=25%

Hence, the gain= 25%

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