Ramesh claims that he is selling onions at Rs. 36 per kg, which costs him Rs. 40 per kg, but he gives 800 grams instead of 1 kg. Find Ramesh's percentage gain or loss.

Answer: Option D

Solution

Answer: Option D

Solution:

$$\text{Loss}=\frac{4}{80}\times 100=10\%$$

$$\begin{array}{rl}& \text{Profit}=\frac{200}{800}\times 100=25\%\\ & \text{Over all profit}\\ & =25-10-\frac{25\times 10}{100}\\ & =12.5\%\text{ Answer}\end{array}$$