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Volume and Surface Area of Solid Figures

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  1. A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is ?
    1. 3 : 5
    2. 2 : 5
    3. 3 : 1
    4. 1 : 3
Correct Option: D

Let the height of cylinder = h
and height cone = H
Then, πr2 h = 1/3 πr2 H
⇒ h/H = 1/3 = 1 : 3


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