If n is an integer （整数）and 2 < n < 6,what is the value of (1) n is a factor of 15.(2) n is怎么选 B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.If n is an integer （整数）and 2 < n < 6,what is the value o

If n is an integer （整数）and 2 < n < 6,what is the value of (1) n is a factor of 15.(2) n is怎么选 B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.If n is an integer （整数）and 2 < n < 6,what is the value o
If n is an integer （整数）and 2 < n < 6,what is the value of (1) n is a factor of 15.(2) n is
怎么选 B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.
If n is an integer （整数）and 2 < n < 6,what is the value of
(1)\x09 n is a factor of 15.
(2)\x09 n is a factor of 21.
\x09
A.Statement (1) ALONE is sufficient,but statement (2) alone is not sufficient.
B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.
C.BOTH statements TOGETHER are sufficient,but NEITHER statement ALONE is sufficient.
D.EACH statement ALONE is sufficient.
E.Statements (1) and (2) TOGETHER are NOT sufficient.
为什么选 B

If n is an integer （整数）and 2 < n < 6,what is the value of (1) n is a factor of 15.(2) n is怎么选 B.Statement (2) ALONE is sufficient,but statement (1) alone is not sufficient.If n is an integer （整数）and 2 < n < 6,what is the value o
先翻译成中文,以免你在看题的时候万一有理解错误
假如N是一个整数,并且2 < n < 6,那么n的数值是多少?
1）n 是15的一个因子
2）n是21的一个因子
其实以上的条件是说,你知道了哪一个,就可以确定n的数值了呢?
分析一下儿一1）n是15的一个因子,15有3 *5两个因子,而3,5都符合 2< n