If selling price is doubled, the profit triples. Find the profit percent?
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300%
suppose buying price is 1/- then selling price make 2/-
if selling price is doubled then SP = 4/-
buying Price is = 1/-
profit is = 4-1 = 3/-
so profit percentage is (3/1)*100=300%
(selling price-buying price)/buyingprice=profit ===> (selling price/buyingprice)-1=profit===> (selling price/buyingprice)=profit+1
(2selling price-buying price)/buyingprice=3profit ==>2(profit+1)-1=3profit ===> profit=1 or 100%