WAEC - Mathematics (1994 - No. 28)
A cuboid of base 12.5cm by 20cm holds exactly 1 litre of water. What is the height of the cuboid? (1 litre =1000cm3)
2cm
4cm
5cm
8cm
10cm
Vysvětlení
Volume of cuboid = length x breadth x height
12.5 x 20 x h = 1000
250h = 1000
h = 4 cm