Question

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

• A. $130\%$
• B. $140\%$
• C. $150\%$
• D. $160\%$

Answer 1

Answer: (B)

$140\%$

Let the C.P $=x$.
A man gains $20\%$ by selling an article.

Then S.P $=\frac{120x}{100}=\frac{6x}{5}$
New S.P. $=\frac{2\times 6x}{5}=\frac{12x}{5}$
Thus profit $=$$\frac{12x}{5}-x=\frac{7x}{5}$
Therefore, the profit percent is $\frac{7x}{5}\times 100=140$$\%$