.A container, open at the top, is in the form of a frustum of a cone o – InterviewSolution

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1.	.A container, open at the top, is in the form of a frustum of a cone ofheight 24 cm with radii of its lower and upper circular ends as 8 cm and20 cm respectively. Find the cost of milk which can completely fill thecontainer at the rate of 21 per litre.[CBSE 2014]
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