1.

Numerical value of a spheres volume is 5 times of spheres surface area .r of sphere is.

Answer»

Here is UR answer
let the volume of shree
=x=4/3πr3
a/q
sa=x/5=4πr2
x=20πr2
from EQ 1.and 2
4/3πr3=20πr2
=1/3π=5
r=15 cm
ok...
it s HELP U..


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