贴上来一道DS题，小伙伴们帮忙解释一下，我好像明白但是又不是很清晰的理解！多谢多...

Audrey1225

对于题干蒙蒙胧胧的理解。。。。求帮助哈～～～～～

Jingypoo

Is the answer C? --Both together are sufficient, but Neither alone is.
My understanding is, it requires: at least 2/3 majority of 20 directors have to attend voting, and at least 1/2 of 20 directors have to vote for yes.
Combing 1 and 2, 10+7 participated in voting and 10 voted for yes.
17>2/3*20 and 10=1/2.

qkhottea

It's A. If you only have 10 votes, it won't be enough for pass. So (1) is sufficient. And if you only know 7 voted against, you won't know what are the responses from the other 13. So (2) is insufficient.

lelo96

OA is B

大坨饭团

it's B.
A. if we know that 10 vote for the resolution, but the number of directors attending the meeting is unknown. if there are 15 or more present, the re is turned down; if there are 10 to 14 present, the re is passed; Insufficient
B. we know 7 vote against the re, so now matter how many directors attend, the re must be turned down. The max number of directors attending could be 20, and 7/20 < 2/3.