1. A shopkeeper sold an article at 20% discount and earned d profit of 4%. By what percent the marked price of the article more than the cost price of the article ?
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By: anil on 05 May 2019 01.20 am
Let the cost price of each article = Rs. $$100x$$ => Selling price = $$frac{104}{100} imes 100x = 104x$$ ------------------Eqn(1) Let the marked price = Rs. $$100y$$ Selling price of article after 20% discount = $$frac{80}{100} imes 100y = 80y$$ ------------Eqn(2) Comparing eqns(1) & (2), we get : => $$104x = 80y$$ => $$frac{y}{x} = frac{104}{80} = frac{13}{10}$$ $$ herefore$$ Required % by which marked price is more than the cost price = $$frac{13 - 10}{10} imes 100 = 30 \%$$
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