The distance between the two cities is 66 kilometers.
How to find the distance ?
To calculate the distance between two cities when you know the time and speed, you can use the formula:
Distance = Speed × Time
In this case, the vehicle is traveling at a speed of 220 km/h and the time taken is 18 minutes, which is equivalent to 0.3 hours (since 1 hour = 60 minutes).
So, you can calculate the distance as follows:
Distance = Speed x Time
Distance = 220 km/h x 0.3 hours
Distance = 66 kilometers
Therefore, the distance between the two cities is 66 kilometers.