Question

If apples are bought at the rate of $30$ for a rupee, how many apples must be sold for a Rupee so as to gain $20\%$?

• A. $28$
• B. $25$
• C. $20$
• D. $22$

Answer 1

The correct option is B $25$

The merchant makes a profit of $20\%$.
This means that the merchant sells $30$ apples for Rs. $1.20$
Therefore, selling price of $1$ apple $=\left(\begin{array}{c}\frac{1.20}{30}\end{array}\right)=$ Rs. $0.04$
The number of apples that can be sold for Rs. $1.00=\frac{1}{0.04}=25$