Multiple choice

The marked price of an article is Rs. 2,560. During a sale, two successive discounts of 20% and (x)% are offered on it. If the selling price of the article is Rs. 1,679.36, then the value of (x) is:

  1. 16.5

  2. 12.5

  3. 15

  4. 18

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

After first discount of 20%, price = 2560 × 0.8 = 2048. After second discount of x%, final price = 2048 × (1 - x/100) = 1679.36. Therefore, 1 - x/100 = 1679.36/2048 = 0.82, so x/100 = 0.18 and x = 18%. Verify: 2560 × 0.8 × 0.82 = 1679.36 ✓