A man gains 20% by selling an article for a certain price. If he sells it at double the price, the percentage of profit will be: Option 1) 40%Option 2) 100%Option 3) 130%Option 4) 140%Option 5) 120%

$\dpi{100} P\; ^{0}\! /_{0}=\left ( \frac{140}{100} \right )100=140\; ^{0}\! /_{0}$