Q. 285.0( 1 Vote )
The radii of two A. 27 : 20
B. 20 : 27
C. 4 : 9
D. 9 : 4
Answer :
Let the radii be 2x and 3x respectively and heights be 5y and 3y respectively.
Volume of a cylinder = 
⇒ Ratio of their Volumes = 
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