A shopkeeper sells 44 calculators and earns a profit equal to the selling price of 11 calculators. What is his profit percentage?
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Let the sp of one calculator be X
Then sp of 44 calculators be 44x
Profit= sp of 11 calculators
Therefore profit is 11x
Sp=cp+profit
44x=cp+11x
Cp=44x-11x=33x
Profit percentage=profit/cp *100
=11x/33x*100
=1/3*100
=33.33
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