The unreasonable distribution should be: (3+2+ 1)/4= 1.5 (room) 6/ 1.5=4 (ten thousand yuan/room).

A share: (3- 1.5)x4=6 (ten thousand yuan) b share: (2- 1.5)x4=2 (ten thousand yuan) c share: (1.5- 1)x4=2 (.

Reserved: 6 (ten thousand yuan)