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WAEC Mathematics 1994 Question 27

Question 27

Mensuration of Solids

A cuboid of base 12.5cm by 20cm holds exactly 1 litre of water. What is the height of the cuboid? (1 litre = 1000cm3)

  1. A.2cm
  2. B.4cm
  3. C.5cm
  4. D.8cm
  5. E.10cm
Show the answer and explanation

Answer: B (4cm)

Explanation

Base area = 12.5 × 20 = 250 cm², so height = 1000 ÷ 250 = 4 cm.