A certain fishing boat is chartered by 6 people who
are to contribute equally to the total charter cost of
$480. If "each" person contributes equally to a $150
down payment, how much of the charter cost will
each person still own ?
我寫ㄉ時候 看到 each
but 答案是 (480-150)/6 why?
雖然知道很丟臉 還是想問^^