Question

Surface area of two spheres are in the ratio 36:25 find their ratio of their volume if difference of the radius is 4cm find the radius of each sphere

Answer 1

4R²:4r²::36:25
(2R)²* 5² = (2r)² * 6²
(10R)² = (12r)²
R-r=4
40(4+r)=12r
40+10r=12r
40=2r
r=20
r=4+r
=4+20
=24
4*3.14*R^3:4*3.14*r^3
R³:r³
24*24*24:20*20*20
13824:8000​