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WAEC Mathematics 2011 Question 42

Question 42

Mensuration of Solids

John pours 96 litres of red oil into a rectangular container with length 220 cm and breadth 40 cm. Calculate, correct to the nearest cm, the height of the oil in the container.

  1. A.11 cm
  2. B.18 cm
  3. C.21 cm
  4. D.34 cm
Show the answer and explanation

Answer: A (11 cm)

Explanation

96 litres = 96,000 cm3. Height = 96,000 ÷ (220 × 40) ≈ 10.9 ≈ 11 cm.