题库搜索>问题求解PS-13496
Working simultaneously and independently at an identical constant rate, 4 machines of a certain type can produce a total of x units of product P in 6 days. How many of these machines, working simultaneously and independently at this constant rate, can produce a total of 3x units of product P in 4 days?
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4台机器相等的速率：能在6天内完成p产品x个
问4天能完成p产品3x个的机器需要几台？
每天每台的速率为：x/24
4天能完成：x/6 个
3x/(x/6)=18
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问题求解PS
来源：
GWD
题目信息2m31s
平均耗时
88.5%
平均正确率
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