The marked price of a watch is 1000 Rs. If a retailer buys this watch at 810 Rs. after getting two successive discounts of 10% and another rate which is illegible. What should be the second discount rate?
The marked price of a watch is 1000 Rs. If a retailer buys this watch at 810 Rs. after getting two successive discounts of 10% and another rate which is illegible. What should be the second discount rate?
[A]7.5%
[B]10%
[C]8%
[D]12%
10%
Price after 10% first discount = $latex 1000\times \frac{100-10}{100}&s=1$
$latex => 1000\times \frac{90}{100} = 900 Rs.&s=1$
Price after second discount = 810 Rs. (Given)
∴ Second discount = 900 – 810 = 90 Rs.
∴ Percentage of second discount = $latex \frac{90\times 100}{900} = 10\%&s=1$
Hence option [B] is the right answer.