Question

the volume of a sphere is 4851cm^3.how much should its radius be reduced so that its volume became 4312/3.

Answer 1

volume of sphere=4/3pir^3
=4×22×r^3/21=4851
=r^3=4851×21/88
r^3=1,157.625
r=10.5

new volume of sphere=4/3pir^3
=r^3=4312×3×7/4×22×3
r^3=1,029
r=10.0

the radius should be reduced to 0.5cm to get the volume as 4312/3