題目誤導人~
- Y# W& f% s5 s6 r! ktvb now,tvbnow,bttvbowner 100
5 ]# N8 e a# C$ P p7 @$ P+ x公仔箱論壇owner's son 20公仔箱論壇( t4 H! x' Y! Y2 {# r3 |& g; V
each pay 40tvb now,tvbnow,bttvb: a( u+ L1 q/ a5 p5 _& J
40*3 = 120% [' E% f5 e1 `' \0 H
120(3 guys) - 20(owner's son) = 100 (owner) |