question 1
is the positive integer R an even number?
1. R is a prime number
2. 3<R<26
question 2
if A is the average (arithmetic mean) of 6 consecutive odd integers, which of the following must be true?
I. A is a multiple of 6.
II. A is a nonzero integer.
III. A is an even integer.
多谢!
第一题是C吧。判断一定不是偶数 。
第2题,我怎么觉得,如果0不是偶数的话,三个条件都不对。
以前的教科书上说0既不是奇数也不是偶数,如今的说0是偶数了.
另外还说0是任何非零自然数的倍数,如果这是正确的话,那么第二题是不是I和III
都正确啊?
不知道GMAC是怎么定义的.
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