Question

The number of times one needs to use the completely filled cone to completely fill the cylinder with water is

Answer 1

it takes three cones' volume to equal a cylinder's

Answer 2

Explanation:

Given that there is a cone and cylinder with equal radius and height.

Recall volume formula for cone and cylinder as

Volume of cone =
`(1)/(3) \pi r^2 h`

Volume of cylinder =
`\pi r^2 h`

Thus we find that cylinder has a greater volume and ratio is 3:1

Hence 3 times if filled up with a cone the cylinder will be completely full