The selling price of 6 bananas is equal to the cost price of 8 bananas. Then the percentage of profit is = ?

Answer: Option B

6 selling price = 8 cost price
$$\begin{array}{rl}& \frac{\text{SP}}{\text{CP}}=\frac{4}{3})1\to \text{Profit}\\ & \text{Profit}=\text{1}\\ & \text{Profit }\%=\frac{1}{3}\times 100\\ & =33\frac{1}{3}\%\end{array}$$