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WAEC Mathematics 2010 Question 17

Question 17

Mensuration of Solids

An empty rectangular tank is 250cm long and 120cm wide. If 180 litres of water is poured into the tank, calculate the height of the water.

  1. A.6.0 cm
  2. B.5.5 cm
  3. C.5.0 cm
  4. D.4.5 cm
Show the answer and explanation

Answer: A (6.0 cm)

Explanation

180 litres = 180,000 cm3. Height = 180,000 ÷ (250 × 120) = 6.0 cm.