一道文字题:A1‘s weekly net salary=$350, 10% is used for fuel and ensurance for automobile, 15% for food, 30% for rent and utilities, 25% for saving, 20% for others. 问:to how many of the categories listed was at least $80 of A1's weekly net salary allocated?
我就是不明白这个问题是什么意思,请哪位大侠指点一二。作者: zyh79 时间: 2002-10-13 20:41