Q8 of 90 Page 133

The selling price of 10 pencils is equal to the cost price of 11 pencils. What is the profit percentage?

Let the CP of one pencil be x


And CP of 11 pencils be 11 x


SP of 10 pencils = CP of 11 pencil


So, SP of 10 pencils = 11 x


So, SP is greater than the CP, so there is a profit


Profit = 11x – 10x = x


i.e. profit is x, so the percentage profit is




= 10%


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