A television set was purchased for ₹ 650, and another ₹50 were spent on its transportation. At what price should it be sold so that the profit earned would be 20%?

Correct option is C

​$$\text{Given, Total cost price (CP) of Television}\\\quad = \text{₹}650 + 50\\\quad = \text{₹}700\\\text{According to the question, Selling Price (SP) of television is given by:}\\SP = \frac{\text{CP} \times (100 + P\%)}{100}\\SP = \frac{700 \times 120}{100}\\\quad = \text{₹}840\\\text{Hence, selling price of television to earn 20\% profit}\\\quad = \text{₹}840$$​​