# The marked price of a watch is 800 Rs. A shopkeeper gives two successive discounts and sells the watch at 612 Rs. If the first discount is 10%, the second discount is :

The marked price of a watch is 800 Rs. A shopkeeper gives two successive discounts and sells the watch at 612 Rs. If the first discount is 10%, then the second discount is :

[A]10%

[B]12%

[C]15%

[D]20%

**15%**

Let the second discount be x%.

Then, 90% of (100 – x)% of 800 = 612.

$latex => \frac{90}{100}\times \frac{100-x}{100}\times 800 = 612&s=1$

$latex => 100-x = \frac{612\times 100}{90\times 8} = 85&s=1$

$latex => x = 100-85 = 15\%$

Hence option [C] is correct answer.