6 a book was sold for rs 27.50 with a profit of 10%. if it were sold for rs25.75, then what would be % of profit or loss?
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by selling at 27.5,the seller makes 10% profit on cost
therefore 27.5 is 110% of cost
cost is therefore 25(27.5/110%)
by selling at 25.75,profit of 0.75
%profit=.75/25=3%
therefore 27.5 is 110% of cost
cost is therefore 25(27.5/110%)
by selling at 25.75,profit of 0.75
%profit=.75/25=3%
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