Multiple choice

If the cost price of 15 articles is equal to the selling price of 12 articles, the profit percentage is -

  1. 25%

  2. 20%

  3. 18%

  4. 15%
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A Correct answer
Explanation

CP of 15 articles = SP of 12 articles. Let CP of 1 article = 1, so CP of 15 = 15. SP of 12 = 15, so SP of 1 = 15/12 = 1.25. Profit = SP - CP = 1.25 - 1 = 0.25. Profit% = (0.25/1) × 100 = 25%. Formula: Profit% = ((15/12) - 1) × 100 = 25%. Option B (20%) would be if 15 CP = 12 SP. Option C (18%) and D (15%) are incorrect.

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