RRB Group D Model Paper 7 with solutions

Question : 59 of 100

Marks: +1, -0

The radii of the base of a cylinder and a cone are equal and their volumes are also equal. The ratio of their heights is_______.

Solution:

(4) Let the radius of the cylinder and cone be r, and the heights of cylinder and cone be

h_1

and

h_2

, respectively. Now

πr^2h_1

1/3πr^2h_2

⇒

h_1/h_2=1/3

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