Question

10 cm radius ke ek hard gola ko melt kar ke 64 gola banaya gaya to small sphere ka radius Kya hoga​

Answer 1

volume of sphere=64 ×volume of small sphere

4/3πr^3=64×4/3πr^3

r^3/64=r^3

r^3=10×10×10/4×4×4

r=10/4

r=2.5 cm