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WAEC Mathematics 2009 Question 40

Question 40

Mensuration of Solids

A bucket holds 10 litres of water. How many buckets of water will fill a reservoir of size 8 m × 7 m × 5 m. (1 litre = 1000 cm3).

  1. A.28
  2. B.280
  3. C.2800
  4. D.28000
Show the answer and explanation

Answer: D (28000)

Explanation

Volume = 280 m3 = 280,000 litres (1 m3 = 1000 litres). 280,000 ÷ 10 = 28,000 buckets.