|
- 精华
- 0
- 积分
- 959
- 经验
- 959 点
- 威望
- 77 点
- 金钱
- 409 ￥
- 魅力
- 221
|
问一道PREP2的数学题~谢谢诸位~~
问一道PREP2的数学题。
Pat, Kate, and Mark charged a total of 162 hours to a certain project. If Pat charged twice as much time to the project as Kate and 1/3 as much time as Mark, how many more hours did Mark charge to the project than Kate?
答案是90。
我的疑问是题目的意思。。汗。。那个charge到底是什么意思呢。。好像不是说某个工作三个人一起做要162小时，然后单独做P的时间是K的两倍的意思。。因为如果按这个意思做我算出来的数字很奇怪。。。
谢谢哦~ |
|
