01. The inner sides of a cubical box are of length 4 centimetres. What is its capacity? How many cubes of side 2 centimetres can be stacked inside it?
Inner length = 4 cm
Breadth = 4 cm
Height = 4 cm
Capacity of box = 4 X 4 X 4 = 64 cu.cm
Volume of a cube of side 2 cm = 2 X 2 X 2 = 8 cu.cm
Number of Small cubes that can be stacked in the big box = 64/8 = 8
02. The inner side of a rectangular tank are 70 centimetres, 80 centimetres, 90 centimetres. How many litres of water can it contain?
Inner length = 70 cm
Breadth = 80 cm
Height = 90 cm
Capacity of the tank = 70 X 80 X 90 = 50400 cu.cm
Convert to Litre = 504000/1000 = 504 litre
03. The length and breadth of a rectangular box are 90 centimetres and 40 centimetres. It contains 180 litres of water. How high is the water level?
180 litre = 180 X 1000 = 180000 cu.cm
Length X Breadth X Height = Volume
90 X 40 X ?? = 180000
Height = 180000 / 90 X 40 = 50 cm
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