1.

A man travels the first part of his journey at 20 km/h and the next at 70 km/h covering the entire journey at an average speed of 50 km/h What is the ratio of the distance that he covered ta 20 km/h to that he covered at 70 km/h?

Answer»

4:21
3:22
1:4
3:5

Answer :A


Discussion

No Comment Found