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7.Profit and Loss
easy
A man sold two cows at $Rs. \,1995$ each. On one he lost $10 \%$ and on the other he gained $10 \% .$ What his gain or loss percent?
A
$4$
B
$2$
C
$0.5$
D
$1$
Solution
Here, since both gain and loss percent is same, hence the resultant value would be loss percent only.
$\Rightarrow \quad \operatorname{Loss} \%=\frac{ a ^{2}}{100} \quad[$ where $a =10 \%]=1 \%$
Standard 13
Quantitative Aptitude