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. 2x%
• B. <table><tr><td rowspan="2"></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/aptitude/1-sym-oparen-h1.gif"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;">10</td><td rowspan="2">+ x²</td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-cparen-h1.gif"></td><td rowspan="2">%</td> </tr><tr><td style="text-align: center;">x</td></tr></table>
• C. None of these
• D. <table><tr><td rowspan="2"></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/aptitude/1-sym-oparen-h1.gif"></td><td rowspan="2">x +</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>x²</center></td><td rowspan="2"><img src="https://www.indiabix.com/_files/images/data-interpretation/common/15-sym-cparen-h1.gif"></td><td rowspan="2">%</td> </tr><tr><td style="text-align: center;">100</td></tr></table>