When 2/9 of the votes on a certain resolution have been counted, 3/4 of those counted are in favor of the resolution. What fraction of the remaining votes must be against the resolution so that the total count will result in a vote of 2 to 1 against the resolution?
11/14
13/18
4/7
3/7
3/14
在2/9counted的人中,有1/4投了反对票,3/4投了赞成票。题目问在剩余的7/9uncounted的票中,有多少投了反对票才能使得总的票数有2/3的反对票?→2/9*1/4+7/9*X=2/3
登录 或 注册 后可以参加讨论