An empty rectangular tank is 250cm long and 120... - WAEC Mathematics 2010 Question
An empty rectangular tank is 250cm long and 120cm wide. If 180 litres of water is poured into the tank. Calculate the height of the water
A
6.0cm
B
5.5cm
C
5.0cm
D
4.5cm
correct option: a
Volume of water in tank = l x b x h = 180 litres
but 1 litre = 1000cm2
250 x 120 x hw = 180 x 1000
hw = (\frac{180 \times 1000}{250 \times 120})
= 6cm
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