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7.Profit and Loss
easy
cost price of $100$ books is equal to the selling price of $60$ books. The gain or loss percentage will be
A
$66 \frac{2}{3}$
B
$66 \frac{1}{4}$
C
$66$
D
$66 \frac{3}{4}$
Solution
Cost price of $100$ books $=$ selling price of $60$ books.
$\frac{C P}{S P}=\frac{60}{100} \Rightarrow 3 / 5$
Profit $\%=\frac{5-3}{3} \times 100=66\frac{2}{3} \%$
Standard 13
Quantitative Aptitude