at a certain company, a test was given to a group of men and women seeking promotions. If the average (arithmetic mean) score for the group was 80, was the average score for the women greater than 85?
1 the average score for the men was less than 75
2 the group consisted of more men than women.
OG上给的答案太难记了,有简单一些的办法看出来吗? 单看的话觉得是E