GWD 21 20

Of the 60 animals on a certain farm, 2/3 are either pigs or cows,

how many of the animals are cows?

(1) the farm has more than twice as many cows as it has pigs.

(2) the farm has more than 12 pigs.

Rank: 4

3^#

hedgeforfun发表于 2005-11-19 21:08 | 只看该作者

thanks a lot !!!!

Rank: 7 Rank: 7 Rank: 7

2^#

himba发表于 2005-11-18 20:42 | 只看该作者

Ans:E

pig+COW=20

2P+P〈=20，so P<=6,那COW就有可能是14，15，16。。。。，（1）不满足

（2）单独肯定不满足

（1）+（2）也不满足

自2003年开始提供 MBA 申请服务以来，保持着90% 以上的成功率，其中Top10 MBA服务成功率更是高达95%