Question 976915: 3 solid spherical balls of radi 3cm,4cm,5cm are melted into single ball than its radius is ? Found 2 solutions by Cromlix, Alan3354:Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Volume of a sphere = 4/3 x pi x r^3
First ball: 4/3 x pi x 3^3 = 113.097 cm^3
Second ball: 4/3 x pi x 4^3 = 268.083 cm^3
Third ball: 4/3 x pi x 5^3 = 523.599 cm^3
Total volumes = 904.779 cm^3
4/3 x pi x r^3 = 904.779 cm^3
r^3 = (3 x 904.779)/4 x pi) = 216.00 cm^3
radius = cube root of 216.00 cm^3
radius = 6 cm.
Hope this helps:-)
