13) It takes eight hours for a 600 km journey, if 120 km is done by train
and the rest by car. It takes 20 minutes more, if 200 km is done by
train and the rest by car. The ratio of the speed of the train to that
of the cars is:

- A)2 : 3
- B)3 : 2
- C)3 : 4
- D)4 : 3

**Answer: **
C