Multiple choice

The marked price of an article is Rs. 640. Rahul buys it for Rs. 489.6 after receiving two successive discounts. If the first discount was 10%, what was the second discount?

  1. 10%

  2. 15%

  3. 20%

  4. 22.5%

  5. 25%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

640 * 0.9 = 576. 576 * (1 - x) = 489.6. 1 - x = 489.6 / 576 = 0.85. So x = 0.15, which is 15%.

AI explanation

The marked price is Rs. 640 and the first discount is 10%, making the price after the first discount 640 times 0.90, which equals Rs. 576. Rahul buys the article for Rs. 489.6 after the second successive discount, so the second discount factor is 489.6 divided by 576, which equals 0.85. This means the price is 85% of the intermediate price, so the second discount is (1 - 0.85) times 100, equaling 15%.

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