題目誤導人~
: y9 }9 w& \, S7 q公仔箱論壇owner 100
# x6 X# W& \" s* d# T3 a$ g% D4 ctvb now,tvbnow,bttvbowner's son 20公仔箱論壇# R" p# L2 m/ ?' X
each pay 40tvb now,tvbnow,bttvb: ^, J" g* J" C
40*3 = 120
* C# I) F% ~' o$ }120(3 guys) - 20(owner's son) = 100 (owner) |