An empty rectangular tank is 250cm long and 120cm wide. If 180 litres of water...

WAEC 2010

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

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Correct Answer: Option A

Explanation

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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An empty rectangular tank is 250cm long and 120cm wide. If 180 litres of water...

Correct Answer: Option A

Explanation

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