Multiple choice

A shopkeeper normally allows a discount of 10% on the marked price. But while weighing he weight 20% less. Find his equivalent profit percent.

  1. $10%$
  2. $15%$
  3. $12.5%$
  4. $17.5%$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Effective selling price after 10% discount = 0.9x. But actual weight given = 0.8x, so cost = 0.8x. Profit = 0.9x - 0.8x = 0.1x. Profit percent = (0.1x / 0.8x) × 100 = 12.5%.

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