A factory assembles Product X from three components, A, B, and C. One of each component is needed for each Product X and all three components must be available when assembly of each Product X starts. It takes two days to assemble one Product X. Assembly of each Product X starts at the beginning of one day and is finished at the end of the next day.The factory can work on at most five Product Xs at once. If components are available each day as shown in the table above, what is the largest number of product Xs that can be assembled during the three days covered by the table?
3
5
6
9
10
两天是到第二天结束,不是第二天的一半就可以开始,题目要理解对
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