WAEC - Mathematics (2011 - No. 31)
John pours 96 litres of red oil into a rectangular container with length 220cm and breadth 40cm. Calculate, correct to the nearest cm, the height of the oil in the container
11cm
18cm
21cm
34cm
Explication
volume of rectangular container = L x B x H
1 litre = 1000cm3
96 litres = \(\frac{1000cm^3}{1 litres}\) x 96 litres
volume = 96000cm3
96000 = 220 x 40
96--- = 8800H
H = \(\frac{96000}{8800}\)
= 10.97cm
= 11cm
1 litre = 1000cm3
96 litres = \(\frac{1000cm^3}{1 litres}\) x 96 litres
volume = 96000cm3
96000 = 220 x 40
96--- = 8800H
H = \(\frac{96000}{8800}\)
= 10.97cm
= 11cm