A cylinder and a cone have the same height and same radius

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A cylinder and a cone have the same height and same radius of the base. The ratio between the volumes of the cylinder and the cone is ?

1. 1 : 3
2. 3 : 1
3. 1 : 2
4. 2: 1

Correct Option: B

Ratio of their volumes = [πr²h] / [(1/3)πr²h] = 3/1
= 3 : 1