A trader sold 40 erasers and earned a profit equal to the selling price of 12 erasers .find his profit %
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Let the cost price of the eraser =₹12. Cost price of 40 erasers= Selling price of 12 erasers=> 12(40)=
Selling price of 12 erasers => Selling price of the eraser =12(40)/12 =₹40. Profit=40-12=₹28. Profit%=28/12×100=700/3 % =233.33% .
Selling price of 12 erasers => Selling price of the eraser =12(40)/12 =₹40. Profit=40-12=₹28. Profit%=28/12×100=700/3 % =233.33% .
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