題目誤導人~公仔箱論壇6 Q: r5 l0 u' f& `! @/ Q$ S
owner 100
6 K) t- m) V0 y5 d! X8 E; I$ _7 Howner's son 20: Z8 }( \, i% {$ X7 \9 e
each pay 40
" b$ B" P& x- V, ~) @- u; `( C' W7 Dtvb now,tvbnow,bttvb40*3 = 120
: \. x4 z$ \0 O! n9 n9 ?- |" E120(3 guys) - 20(owner's son) = 100 (owner) |