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WAEC Mathematics 2023 Question 15

Question 15

Commercial Arithmetic

The price of a shoe was decreased by 22%. If the new price was $27.30, what was the original price?

  1. A.$62.30
  2. B.$42.30
  3. C.$72.00
  4. D.$35.00
Show the answer and explanation

Answer: D ($35.00)

Explanation

The new price is 78% of the old: 0.78P = 27.30, so P = 27.30 ÷ 0.78 = $35.00.