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A washing tub in the shape of a frustum ...

A washing tub in the shape of a frustum of a cone has height 21 cm. The radii of the circular top and bottom are 20 cm and 15 cm respectively. What is the capacity of the tub in litres?

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The correct Answer is:
`= 20.35 ` litres
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TARGET PUBLICATION-MENSURATION-Problem Set -7
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