題目誤導人~
8 S$ g; Z/ S [owner 100
* p% s2 |9 \1 f5.39.217.77owner's son 20tvb now,tvbnow,bttvb' {! m1 J9 l& J; j2 t
each pay 40tvb now,tvbnow,bttvb; H% r6 H1 O' J( ?1 Z% [3 n: {
40*3 = 120tvb now,tvbnow,bttvb4 C$ Z9 K2 c4 D! V- }7 c
120(3 guys) - 20(owner's son) = 100 (owner) |