Question

If the selling price is doubled, the profit triples. Find the profit percent

• A. $50\%$
• B. $60\%$
• C. $120\%$
• D. $100\%$

Answer 1

The correct option is D $100\%$

Let C.P. be Rs. x and S.P be Rs. y.
Then, $3\left(\begin{array}{c}y-x\end{array}\right)=\left(\begin{array}{c}2y-x\end{array}\right)\Rightarrow y=2x$
Profit $=Rs.\left(\begin{array}{c}y-x\end{array}\right)=Rs.\left(\begin{array}{c}2x-x\end{array}\right)=Rs.x$.
Profit $\%=\frac{x}{x}\times 100$$=100$%