[讨论]9月math机经330题

weiwu10

48) A work performed at constant rate, it needs 4 workers to produce x units in 6 days, and how many workers are needed to produce 3x units in 4 days?
参考答案: 18
思路

请问一下,这题要如何算出的呢?

rosieres

[face=Arial]

以下是引用weiwu10在2003-10-30 19:48:00的发言：
48) A work performed at constant rate, it needs 4 workers to produce x units in 6 days, and how many workers are needed to produce 3x units in 4 days?
参考答案: 18
思路
请问一下,这题要如何算出的呢?

4 workers produce x units in 6 days
->4 workers produce x/6 units in 1 day
->1 worker produces x/24 units in 1 day

問3x units in 4 days
->1 worker produces x/6 units in 4 day
so 3x除以x/6=18 [/face]