A right angled cone has its height 'h'. The cone is being cut parallel to its base at h/5 distance from its vertex. What will be the ratio of the cone and the cutting portion
Choose the correct choice from the following.
A) 1:124  B) 1:125  C) 1:25  D) 1:26  E) 1:24
let radius of smaller cone=R   radius of bigger cone=r   height of smaller cone=h/5   height of bigger cone=h   volume of smaller cone=1/3*pi*R^2*h   volume of reamaining portion=volume of bigger cone - volume of smaller cone   i.e 1/3*pi*r^2h-1/3*pi*R^2(h/5)   from the similarity of triangle   r/R=5:1   equating value   we get 1:124   1:124NSWER:1:124
<result>A</result>
A right angled cone has its height 'h'. The cone is being cut parallel to its base at h/5 distance from its vertex. What will be the ratio of the cone and the cutting portion