The route ahead of you on a map with a scale of 1:50 000 (in 1cm-500m) is depicted by a line 16 cm long.

The route ahead of you on a map with a scale of 1:50 000 (in 1cm-500m) is depicted by a line 16 cm long. How long will you take it if you move at a speed of 4 km per hour.

500 (m.) * 16 (cm.) = 8000 meters on the ground.
8000 meters must be converted into kilometers: 8000 (m) / 1000 (m) = 8 km.
We are given a speed of 4 km. in hour. The distance on the ground is 8 km.
In order to find the time, the distance must be divided by the speed.
8 (km) / 4 (km / h) = 2 hours.
Answer: 2 hours.