Question

A computer marked at Rs.18000 was sold at Rs.15840. Find the percentage of the discount.

Answer 1

Hint: In this question, we are given the market price and selling price of a computer. We need to find the percentage of discounts on computers. For this, we will first find the amount of discount using the formula: Discount = Market price - Selling price. After that, we will find the percentage of discount using the formula: $\text{Discount}\%=\dfrac{\text{Discount}}{\text{Market price}}\times 100$.

Complete step-by-step solution
Here, we are given the market price of a computer at Rs.18000. The computer was sold at some discount. The selling price of the computer is given as Rs.15840. We need to find the percentage of discount on the computer.
Let us first find the amount of discount on the computer. We know that the discount is given by the difference between the market price and the selling price. Therefore,
Discount = Market price - Selling price.
$\text{Discount}=Rs.18000-15840=Rs.2160$.
So there was a discount of Rs.2160 on the computer. Now we need to find the percentage of discount. Since discount is applied on market price, so formula of discount percentage is given by:
$\text{Discount}\%=\dfrac{\text{Discount}}{\text{Market price}}\times 100$
$\text{Discount}\%=\dfrac{\text{2160}}{\text{18000}}\times 100=\dfrac{216}{18}=12\%$.
Hence the discount percentage is 12%.

Note: Students should note that discount percentage is always calculated using discount and market price because the discount is always applied to the market price. Students can get confused between discount and discount percentage, so take care of that as both are different. Discount is the amount which is reduced from market price whereas discount percentage gives us the percentage of market price which will be reduced.