Two cylindrical vessels with radii 6 cm and 8 cm and heights 12 cm and 9 cm respectively are filled with water. If this water when poured to fill up a new cylindrical vessel, then the level of water in the new vessel is 7 cm. Find its radius.
1
12 cm
2
8 cm
3
9 cm
4
More than one of the above
5
None of the above