CBSE Class 10 Maths (Standard) 2017 · Paper 30(B) · Question 29
A container made of a metal sheet open at the top is of the form of a frustum of a cone, whose height is cm and the radii of its lower and upper circular edges are cm and cm respectively. Find the cost of milk at the rate of per litre which can fill it completely.
Answer
The container holds about litres, costing approximately .
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