求助数学几道题.麻烦了

charlottewei

1. 3个圆同时转的那道题，CD数学版JJ已经收录了，确认nopanicfan画的木有错

 

4.In the store of a car dealer, less than 10 cars are equiped with fog light, and 40% of the cars have  **window, Is the dealer has more car with fog light than those with **window?

 

 

 

1)80% cars have fog light and window

 

 

 

2)52 cars have fog light or window or both

 

 

6.X<Y<Z,U<T，问X<U<Y<T<Z是否成立？

 

1）x+u=y-u

 

 

 

2) z-t=y+t

麻烦了.因为16号要考试``

to_lucy

both E, am i right?

DuckenVic

我觉得车行那道题很奇怪，我和我几个同学都觉得条件和题有矛盾。。。