A shopkeeper allows a discount of 12.5 % on the marked price of a certain article and makes a profit of 20 %. If the article costs the shopkeeper 210, then the marked price of the article will be
C.P. = 210
Profit = $$\frac{20}{100}$$ * 210 = 42
=> S.P. = 210+42 = 252
Let M.P. = $$x$$
Discount % = 12.5%
=> $$\frac{x-252}{x}$$ * 100 = 12.5
=> $$7x$$ = 2016
=> $$x$$ = 2016/7 = 288
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