WAEC Mathematics 2014 Objective — Question 31
Question 31 of 50 from the West African Examinations Council (WAEC) Mathematics 2014 Objective paper, with the correct answer and a full explanation.
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A trader bought sachet water for GH¢55.00 per dozen and sold them at 10 for GH¢50.00. Calculate, correct to 2 decimal places, his percentage gain.
- A. 8.00%
- B. 8.30%
- C. 9.09%Correct
- D. 10.00%
Explanation
Cost price per unit = 55/12 ≈ 4.583. Selling price per 10 units after adjustment ≈ 45.83 for 10. Percentage gain = (50.00−45.83)/45.83×100% ≈ 9.09%.
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