Find the ratio of 5 km to 500 m.
1 : 100
10 : 1
100 : 1
1 : 1000
Since, 1 km = 1000 m and 5 km = 5000 m
Then, required ratio =5000500 = 10 : 1
The maximum speed of a train is 90 km/h . It takes 10 hours to cover a distance of 500 km. Find the ratio of its average speed to maximum speed.
Subtract: 1 km - 500 m = ___.