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WAEC Mathematics 2006 Question 9

Question 9

Ratio, Percentages and Rates

A baker used 40% of a 50 kg bag of flour. If 1/8 of the amount used was for cake, how many kilograms of flour was used for cake?

  1. A.2½
  2. B.6¼
  3. C.15⅝
  4. D.17½
Show the answer and explanation

Answer: A (2½)

Explanation

Flour used = 40% of 50 kg = 20 kg. Flour for cake = 1/8 × 20 kg = 2½ kg.