A product, whose marked price is Rs 840, is sold for Rs 798 by a wholesome shop. What is the percentage discount given by him?

6% 5% 3% 4%

5%

Marked price = Rs 840 Selling price = Rs 798 Difference = 840 - 798 = 42 Discount = $\frac{difference}{Marked\;price}$ x 100               = $\frac{42}{840}$ x 100                = 5%