1.

The marked price of an article is Rs. x, and selling price is Rs. y. What is the discount percentage?

A.  \[\frac{(x-y)\,100}{x}%\]   
B.            \[\frac{(y-x)\,100}{x}%\]
C.            \[\left( \frac{y-x}{y} \right)100%\]
D.            \[\frac{x-y}{100}%\]
Answer» B.            \[\frac{(y-x)\,100}{x}%\]


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