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1.If k is a positive integer, is k the square of an integer? (1)k is divisible by 4. (2) k is divisible by exactly 4 different prime numbers.
答案:E 但是我觉得第二个条件就直接可以知道问题是错的啊,你想k被四个完全不同的质数除尽,那他肯定不是任何数的平方啊。。。
2. What is the median number of employees assigned per project for the projects at Company Z? (1)25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
答案:C 但是我觉得就算条件1+条件2知道中数出现在条件2的范围里,但是条件2是个范围啊,还是没有办法知道确定的值的嘛。。。
求高手指点下!! |
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