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problem solving

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楼主
发表于 2014-1-2 17:40:41 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
Each week, Harry is paid x dollars per hour for the first 30 hours and 1.5x dollars for each additional hour worked that week.  Each week, James is paid x dollars per hour for the first 40 hours and 2x dollars for each additional hour worked that week.  Last week James worked a total of 41 hours.  If Harry and James were paid the same amount last week, how many hours did Harry work last week?


35
36
37
38
39








怎么解 求大神~~~


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沙发
发表于 2014-1-2 18:48:05 | 只看该作者
同问= = 怎么感觉没有答案呢
板凳
 楼主| 发表于 2014-1-16 14:22:32 | 只看该作者
sharon1kks1 发表于 2014-1-2 18:48
同问= = 怎么感觉没有答案呢

好吧 我算出来了 36  设所用时间为n  40x+2x=30x=1.5x(n-30)   n=36
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