Question

The radius of a sphere is increased by 10%. Find % increase in volume.

Answer 1

Answer:

Step-by-step explanation:

let radius be r

volume =4/3(22/7×r^3)

radius =r+10%of r=r+(r/10)=11r/10

now new volume =4/3(22/7×1.1r×1.1r×1.1r)

now increase in volume =new volume -volume

percent increase in volume =(increase in volume×100)/original volume

Answer 2

let radius be r
volume =4/3(22/7xr^3)
r=r+10percent of r=r+(r/10)11r/10
volume =4/3(22/7x1.1rx1.1rx1.1r)
increase in volume =new volume
percent increase volume =(increase in volume x100)