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

    $\left(x+\frac{x^{2}}{100}\right) \%$

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