gwd-12-35疑惑

Q35:

The total charge to rent a car for one day from Company J consists of a fixed charge of $15.00 plus a charge of $0.20 per mile driven.  The total charge to rent a car for one day from Company K consists of a fixed charge of $20.00 plus a charge of $0.10 per mile driven.  Is the total charge to rent a car from Company J for one day and drive it x miles less than $25.00 ?

(1)   The total charge to rent a car from Company K for one day and drive it x miles is less than $25.00.

(2)     x < 50

答案D，我选B

看完讨论贴，没人提条件1, 我认为知道条件1（K公司）无法判断J公司啊，我是不是哪没看到？

（1）20+0.1x<25,解出x<50,同（2）

条件（1）来说，J和K相同的就是x miles

所以选D