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7.Profit and Loss
medium
A dishonest dealer defrauds to the extent of $x \%$ in buying as well as selling his goods by using faulty weight. What will be the gain per cent on his outlay?
A
$2 x$$\%$
B
$\left(\frac{10}{x}+x^{2}\right) \%$
C
$\left(2 x+\frac{x^{2}}{100}\right) \%$
D
$\left(x+\frac{x^{2}}{100}\right) \%$
Solution
Total profit
$=x+x+\frac{x \times x}{100}$
$=\left(2 x+\frac{x^{2}}{100}\right) \%$
Standard 13
Quantitative Aptitude
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