题目信息
If the average (arithmetic mean) of a and b is j, and the average of c, d, and e is k, what is the average of a, b, c, d, e and j ?
A:$${2k+3j}\over{6}$$
B:$${k+2j}\over{3}$$
C:$${k+j}\over{2}$$
D:$${2k+3j}\over{5}$$
E:$${k+2j}\over{4}$$
参考答案及共享解析

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已选答案:
正确答案:
C:$${k+j}\over{2}$$
权威答案解析正在整理中,即将上线。


题目来源
Magoosh