这道题
Development planners determined the number of new housing units needed in a certain area by using the formula H = kJ, where H is the number of new housing units needed in the area, J is the number of new jobs to be created in the area, and k is a constant. How many new housing units did the planners determine were needed? (1) The number of new jobs to be created was 60,000. (2) According to the formula used by the planners, if 37,500 jobs were to be created, then 7,500 new housing units would be needed.
我选的是B，答案是c
题中的要求是要一个带系数的公式吗？还是要根据条件2算出系数，再依据条件一算出需要多少units，可是题中并不是说，60000jobs对应多少units啊？
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发表于 2013-7-15 10:52:12
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