An article is listed at 920 Rs. A customer pays 742.90 Rs. for it after getting two successive discounts. If the rate of first discount is 15%, then what would be the rate of second discount :
Q. An article is listed at 920 Rs. A customer pays 742.90 Rs. for it after getting two successive discounts. If the rate of first discount is 15%, then what would be the rate of second discount :
Answer: 5%
Notes: Total discount = (920 - 742.90) = 177.10 Rs. First discount = 15% ∴ Discount = 15% of 920 $latex = \frac{920\times 15}{100} = 138\ Rs.&s=1$ Price after this discount = 920 - 138 = 782 Rs. Remaining Discount = 177.10 - 138 = 39.10 Rs. Let the second discount be x %. $latex \therefore \frac{782\times x}{100} = 39.10&s=1$ $latex => x = \frac{39.10\times 100}{782} = 5\%&s=1$ Hence option [B] is correct answer