1. 

Taking the train across town is quicker than taking the bus.
Taking the bus across town is slower than driving a car.
Taking the train across town is quicker than driving a car.
If the first two statements are true, the third statement is

A. true
B. false
C. uncertain

Answer: Option C

Explanation:

Both the car and the train are quicker than the bus, but there is no way to make a comparison between the train and the car.