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John pours 96 litres of red oil into a rectangular container with length 220cm and...

Mathematics
WAEC 2011

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

  • A. 11cm
  • B. 18cm
  • C. 21cm
  • D. 34cm
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Correct Answer: Option A
Explanation

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


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