題目誤導人~公仔箱論壇7 t: v; E) q( [: b) F2 P! O
owner 100公仔箱論壇6 o! k/ N3 |0 c8 p; p( E
owner's son 20
: {, j( u4 r1 rtvb now,tvbnow,bttvbeach pay 40
, S! x- B L9 H40*3 = 120tvb now,tvbnow,bttvb( ^+ ?) ^/ ?( T2 B: @9 B( B
120(3 guys) - 20(owner's son) = 100 (owner) |