A 45m high drum in the form of a frustum is full of diesel. The radii of its lower and upper ends are 9m and 12m, respectively. If the diesel from this drum is poured into a cylindrical shaped well, whose base radius is 15 m, then what will be the height of the diesel in the well?
1
18.25 m
2
22.2 m
3
16.25 m
4
19.95 m