• question_answer An umbrella marked at Rs. 80 is sold for Rs 68. What is the rate of discount? A)  15%B)  20%         C)  25%                            D)  30%

(a) $\text{Discount }%=\frac{\text{M}\text{.P}-\text{Price after discount}}{\text{M}\text{.P}\text{.}}\times 100%$ $=\frac{80-68}{80}\times 100%$ $=\frac{12}{80}\times 100%$ $=\frac{3}{20}\times 100%=15%$