Mathematics · Mensuration
A cone, a hemisphere, and a cylinder stand on equal bases of radius r and have the same height. If the sum of the volumes of the cone, the hemisphere, and the cylinder is equal to the volume of a sphere of radius R, then what is R 3 r 3 equal to?
- 12.5
- 22
- 31.5✓
- 41.25
Correct answer
1.5
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