Question

The ratio of volume and total surface area of a solid sphere is 8:1, then value of radius
= cm​

Answer 1

Volume of a sphere of radius r=4/3*pi*r*r*r

and total surface area of sphere of radius r=4*pi*r*r

Volume:total surface area=8:1

(4/3*22/7*r*r*r)/(4*22/7*r*r)=8/1

r/3=8/1

r=8*3

r=24cm