After selling an article at some price, a trader gain 20% on the selling price. Find his profit% on the cost price.

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Solution

Let the cost price be $R s . C$
Let the sale price be $R s . S$
The According to question $S = C + \frac{1}{5} S$
So $4 S = 5 C$
Thus profit %= $25$ %

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After selling an article at some price, a trader gain 20% on the selling price. Find his profit% on the cost price.

Let the cost price be Rs.CLet the sale price be Rs.SThe According to question S=C+15SSo 4S=5CThus profit %= 25%

Let the cost price be $R s . C$
Let the sale price be $R s . S$
The According to question $S = C + \frac{1}{5} S$
So $4 S = 5 C$
Thus profit %= $25$ %