題目誤導人~ g: W8 n9 t' @: C8 d
owner 100
V: `% E: @: k. z, k1 z( a5.39.217.76owner's son 20tvb now,tvbnow,bttvb( l6 z& U! n. v0 w$ h
each pay 40
5 ]: g6 E5 G( \$ X7 b6 m5.39.217.7640*3 = 120
1 m2 d: F8 b! c3 l* L120(3 guys) - 20(owner's son) = 100 (owner) |