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WAEC Mathematics 2017 Paper

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Question : 15

Total: 49

The dimensions of water tank are 13cm, 10cm and 70cm. If it is half-filled with water, calculate the volume of water in litres

4.55 litres
7.50 litres
8.10 litres
9.55 litres

Solution:

Vol of a cubiod = L x b x h

v = 13cm x 10cm x 70cm

= 9100cm

Since it is half-filled = $\;\frac{9100}{2}$ cm

= 4550cm

4550cm $\to$ 4.55 litres

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