Question

Andy has a snowball (a perfect sphere) with the radius of 3 cm. He wanted the snowball to be bigger, so he spent four seconds packing more snow onto it. Each second he spent packing, the snowballs radius increases by 0.25 cm. What is the ratio of the current volume of the snow bar to the original volume of the snowball.

Answer 1

237%

Explanation:

Volume of original snowball:

`(4)/(3)\pi 3^(3) =113.097`

.25 cm multiplied by 4 seconds equals 1 cm

3 cm + 1 cm = 4 cm

Volume of current snowball:

`(4)/(3)\pi 4^(3) =268.083`

Ratio:

268.083/113.097= 2.37

Answer 2

D). 64/27

Explanation: