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7.Profit and Loss
medium
If the selling price of $40$ articles is equal to the cost price of $50$ articles, the loss or gain percent is
A
$25 \%$ gain
B
$20 \%$ gain
C
$25 \%$ loss
D
$20 \%$ loss
Solution
$S.P$ of $40$ articles $=$ $C.P$ of $50$ articles
$\frac{C P}{S P}=\frac{40}{50} \Rightarrow \frac{4}{5}$
Profit $\%=\frac{5-4}{4} \times 100=25 \%$
Standard 13
Quantitative Aptitude