A storage tank is in the form of a cube. when it is full of water the volume is 15.625 m3 if the present depth of water is 1.3m find the volume of water already used from the tank
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let the side of cube be 'a'
a×a×a =15.625
a = 2.5 m
now if present depth of water is 1.3m
the remaining depth will be 1.2 m
so , vol. of water already used is
a×a×1.2 = 2.5×2.5×1.2 = 7.5 m cube
a×a×a =15.625
a = 2.5 m
now if present depth of water is 1.3m
the remaining depth will be 1.2 m
so , vol. of water already used is
a×a×1.2 = 2.5×2.5×1.2 = 7.5 m cube
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