題目誤導人~% |# H! n' X: X# c, z& r6 r9 m
owner 100
" f* c7 j H3 B, W4 a- y公仔箱論壇owner's son 20
& L4 o( }" s0 i$ Ltvb now,tvbnow,bttvbeach pay 40tvb now,tvbnow,bttvb# e! N& O$ |9 H3 o5 D
40*3 = 120
; t" j* m F0 ^; O" I1 `% F! ^tvb now,tvbnow,bttvb120(3 guys) - 20(owner's son) = 100 (owner) |