A chair is bought for Rs. 800 and sold for Rs. 1,100. Find the gain percentage.

Correct option is C

Given:​
Cost Price (C.P) = Rs. 800

Selling Price (S.P) = Rs. 1,100

Formula Used:

​$$\text{Gain } \% = \left( \frac{\text{Gain}}{\text{Cost Price}} \right) \times 100$$

Solution:

​ Profit = SP - CP = 1,100 - 800 = 300

Profit% = $$\left( \frac{300}{800} \right) \times 100 = 37.5\%$$​​