The cost price of 16 book is equal to the selling price of 11 books. Fins profit or loss percent.
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16x=11y
therefore x=11y/16x
here x is the buying price and y is selling price
profit = selling price - buying price / buying price
= y-11y/16= 5y/16
% profit = profit / buying price * 100
=(5y/16)/(11y/16)=5/11*100 = 500/11
therefore x=11y/16x
here x is the buying price and y is selling price
profit = selling price - buying price / buying price
= y-11y/16= 5y/16
% profit = profit / buying price * 100
=(5y/16)/(11y/16)=5/11*100 = 500/11
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