Question

The ratio of the volume of two sphere is 8:27. If r and R are the radii of spheres respectively , then find R-r/r.if R=3,find r.

Answer 1

Answer:

R-r / r= 1/2

Step-by-step explanation:

Ratio = 8/27

Therefore, $4/3 \pi r^{3}  / 4/3 \pi R^{3} = 8/27\\r^3 / R^3 = 2/3\\R-r/r = 3-2/2 = 1/2$