Answer :

Given: Depth of the bucket = height of frustum = h = 15 cm


Diameter of top of bucket = 56 cm


Diameter of bottom of bucket = 42 cm


Radius of top = R = 56/2 = 28 cm


Radius of bottom = r = 42/2 = 21 cm



Volume of water bucket can hold = volume of bucket which is in form of frustum



= (22/7) × 5 × (784 + 441 + 588) cm3


= (22/7) × 5 × 1813 cm3


= 22 × 5 × 259 cm3


= 28490 cm3


Now 1 litre = 1000 cm3


28490 cm3 = 28490/1000 litres


= 28.49 litres


bucket can hold 28.49 litres of water


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