Question

The radius of a sphere is increased by 120%. What is percent increase in its volume?​

Answer 1

Answer:

964.8%

Step-by-step explanation:

let original radius be 'r'

new Radius =r +120% of r = 2.2r

volumes ratio = 4/3πr^3 :4/3 *π (2.2r)^3

= r^3 : 10.648r^3 = 1 : 10.648

increase in volume = 9.648

increase %=9.648/1 *100 = 964.8%