Alice's take home pay last yer was the same each month, and she saved the same fraction of her take home pay each month. The total amount of mney that she had saved at the end of the year was 3 times the amount of that potion of her monthly take home pay that she didn't save. If all the money that she saved last year was from her take home pay, what fraction of her take home pay did she save each month? 作者: 墨米 时间: 2014-10-16 03:50
找到原因了。。。此帖可删作者: matthuang 时间: 2014-10-28 23:55
楼主怎么解？