WAEC Mathematics 1988 Question 23

Question 23

Mensuration of Solids

A water tank is made with a right-angled trapezium-shaped vertical cross-section so that when it is placed on sloping ground the top of the tank is level. The dimensions are as given in the diagram. By what number will you multiply your answer in 22 above to determine the capacity of the tank in litres?

Diagram for this question
  1. A.1/10
  2. B.1
  3. C.10
  4. D.100
  5. E.1000.
Show the answer and explanation

Answer: E (1000.)

Explanation

1 m³ = 1000 litres, so multiply the volume in cubic metres by 1000.