題目誤導人~5.39.217.77:88987 `$ P' w' ^! }- [8 i
owner 100& f- s* R* u; _; b$ N
owner's son 20
( h3 G/ ?8 o% q2 t7 r: htvb now,tvbnow,bttvbeach pay 40
% ?* d8 d# m( stvb now,tvbnow,bttvb40*3 = 120+ j8 o: m7 t& F* |7 W% E* g. d
120(3 guys) - 20(owner's son) = 100 (owner) |