The volumes of the two spheres are in the ratio 64 : 27. Find the ratio of their surface areas.

Given: Ratio of volume of two sphere=64:27

We know that,

Let r₁ = radius of first sphere

r₂ = radius of second sphere

Thus,

We know that, Surface area of sphere = 4πr²

Where

r = radius of a sphere

Now,

Therefore, ratio of surface area of two sphere is 16:9