CBSE Class 10 Maths (Basic) 2020 · Paper 430/1/1 · Question 39(a)
An open metal bucket is in the shape of a frustum of a cone of height cm with radii of its lower and upper ends as cm and cm respectively. Find the cost of milk which can completely fill the bucket at the rate of ₹40 per litre.
Answer
Cost of milk (capacity litres).
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