2008 AMC 12B #22. 我们州是教育不错的州，但是我们高中很烂也是真的。。。LOL

A parking lot has 16 spaces in a row. Twelve cars arrive, each of which requires one parking space, and their drivers choose their spaces at random from among the available spaces. Auntie Em then arrives in her SUV, which requires 2 adjacent spaces. What is the probability that she is able to park?

所有跟帖： 

• #22 out of 25是难题了。 -傻闷登儿- ♂ (0 bytes) () 03/16/2019 postreply 17:03:43

• 难怪我也没做出来，你这一说，我心里好受多了。。。LOL -Midwestrural- ♂ (38 bytes) () 03/16/2019 postreply 17:05:15

• 你。。你。。。你。。。。 -Midwestrural- ♂ (0 bytes) () 03/16/2019 postreply 17:17:31

• 吓吓你，2008年的22题相当于2018年的15题，LOL -ziqimalvern- ♂ (169 bytes) () 03/16/2019 postreply 17:17:52

• 这。。这。。这。。。 -Midwestrural- ♂ (0 bytes) () 03/16/2019 postreply 17:18:56