question

2007-11-06 3:56 am




6/
Amy, Billy and Carman need to complete a group project.
If only Amy and Billy work together, they need 10 days.
If only Billy and Carman work together, they need 12 days.
If only Amy and Carman work together, they need 15 days.
If all of them work together, they need x days to complete the project.
Find the value of x.
There is a number, apart from 1, which divides the following numbers.
What is it?

回答 (2)

2007-11-06 4:05 am
✔ 最佳答案
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2007-11-05 20:07:30 補充:
135749 .152057 .163231
2011-04-21 9:06 am
雖然答非所問, 雖然時隔已久, 我仍為回答者抄來的第一項建議投以正評.


收錄日期: 2021-04-19 16:36:57
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