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Question 69
A solid cylinder of lead 8 m and 2 m radius is melted and recast into a cone of radius 1.5 m. What is the height of the cone?
Solution
Let the height of cone = 'h' cm
Volume of cylinder = Volume of cone
$$\pi * 2^2 * 8 = \frac{1}{3} * \pi * 1.5^2 * h$$
3 * 4 * 8 = 1.5 * 1.5 * h
h = 42.67 m
