How much time is saved by driving 10 km at 120 km/h instead of 100 km/h?

Step 1: Calculate the time taken to travel 10 km at 100 km/h

Speed = Distance / Time So, Time = Distance / Speed

Time = 10 km / 100 km/h = 0.1 hours

Step 2: Calculate the time taken to travel 10 km at 120 km/h

Time = 10 km / 120 km/h = 0.08333 hours

Step 3: Calculate the time saved

Time saved = Time at 100 km/h - Time at 120 km/h Time saved = 0.1 hours - 0.08333 hours = 0.01667 hours

To convert this time into minutes, multiply by 60 (since there are 60 minutes in an hour)

Time saved = 0.01667 hours * 60 = 1 minute

So, by driving at 120 km/h instead of 100 km/h, you would save approximately 1 minute for every 10 km.