A storage tank is in the form of a cube of side 2.5 m and it was completely filled with water. If the present depth of water is 1.3 m, then find the volume of water already used from the tank.

9500 litres

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7500 litres

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6500 litres

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8500 litres

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Solution

The correct option is B
7500 litres

Present depth of the water in the cubical tank = 1.3 m
$∴$ Height of water used = 2.5 - 1.3 = 1.2 m
Now, volume of water used $= 1.2 \times 2.5 \times 2.5 = 7.5 m^{3}$
$= 7.5 \times 1000 = 7500 L$ $[∵ 1 m^{3} = 1000 L]$
Hence, the volume of water already used from the tanks is 7500 L.

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A storage tank is in the form of a cube of side 2.5 m and it was completely filled with water. If the present depth of water is 1.3 m, then find the volume of water already used from the tank.

The correct option is B 7500 litres Present depth of the water in the cubical tank = 1.3 m ∴ Height of water used = 2.5 - 1.3 = 1.2 m Now, volume of water used =1.2×2.5×2.5=7.5 m3 =7.5×1000=7500 L [∵1 m3=1000 L] Hence, the volume of water already used from the tanks is 7500 L.