Question

.thousand solid metallic spheres of diameter 6 cm are melted and recast into a new solid sphere. the diameter of the new sphere (in cm) is

Answer 1

volume of 1 sphere = 4/3 πr³
= 4/3 × 3.14× 27
= 113.04
volume of 1000 = total vol of new sphere = 113040cm³ = 4/3 π R³
27000= R³
new R = 30cm.
hope this helps.