A solid toy is in the shape which is a combination of a cylinder, cone and a hemispherical bowl. The cylinder contributes to 50% of the total volume of the toy, the cone contributes to 20% of the volume. Find the ratio of the contribution (in terms of volume) of the cone, cylinder and hemispherical bowl.
1
2 : 3 : 5
2
5 : 2 : 3
3
2 : 5 : 3
4
4 : 5 : 3