If a man were to sell his handcart for Rs. 720, he would loss 25% . To gain 25% , the selling price is = ?

Answer: Option B

Let cost price of hand cart = 100
According to the question,
$$\text{100 (cp)}\stackrel{25\%\text{Loss}}{\to }75(\text{sp})\stackrel{\times \frac{48}{5}}{\to }720\text{(given)}$$
$$\begin{array}{rl}& 75\text{units}\to 720\\ & 1\text{unit}\to \frac{720}{75}=\frac{48}{5}\\ & 100\text{units}\to \frac{48}{5}\times 100=960\\ & \therefore \text{Cost price}=\text{ Rs}\text{.960}\\ & \text{To gain }25\%\text{ selling price is }\\ & =\text{cp}+\text{profit}\%\times \text{cp}\\ & =960+\frac{25}{100}\times 960\\ & =960+240=\text{Rs}\text{.}1200\end{array}$$