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Question

The volume of two hemispheres are in the ratio of 8:27. Find the ratio of their radii.


  1. 2:3

  2. 3:2

  3. 1:3

  4. 4:3


Solution

The correct option is A

2:3


Let the volume of two hemispheres be V1 and V2 respectively.
We know that, volume of hemisphere = 23πr3

V1V2=23πr323πR3=827
r3R3=827
rR=23

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