Question

a spherical ball of radius 3cm is melted and recast into three spherical ball. The Radii of two of these balls are1.5cm and 2cm. Find the radius of the third ball

Answer 1

i think the question is wrong as i got a negetive radii

r1=1.5 r2=2 r3=?         and radii of spherical ball=3

4/3 πr³=4/3π{r1³+r2³+r3³}

9=3.375+8+r3³

r3³= -2.375