Question

The marked price of a watch was Rs.7200. A man bought the same for Rs.5508 after getting two successive discounts, the first being 10%.
What was the second successive discount rate?

• A. 12%
• B. 14%
• C. 15%
• D. 18%
• E. 19%

Answer 1

The correct option is C

15%

Let the second discount rate be $x\%$.

Then, $(100-x)\%of90\%of7200=5508$

$\Rightarrow \frac{\left(100-x\right)}{100}\times \frac{90}{100}\times 7200=5508\Rightarrow (100-x)=\left(\frac{55080}{9\times 72}\right)=85\Rightarrow x=15$

$\therefore$ Second successive discount rate = $15\%$