At an average speed of 20 mph, how long does it take a train to travel 1 mile?

To determine how long it takes a train traveling at an average speed of 20 mph to cover 1 mile, you can use the formula:

Time = Distance / Speed

In this case, the distance is 1 mile and the speed is 20 miles per hour. Plugging in the values:

Time = 1 mile / 20 miles per hour = 0.05 hours

To convert hours into minutes, remember that 1 hour is equal to 60 minutes. Therefore:

0.05 hours × 60 minutes/hour = 3 minutes

This calculation shows that it takes 3 minutes for the train to travel 1 mile at an average speed of 20 mph. Thus, the correct answer accurately reflects the relationship between speed, distance, and time, reinforcing understanding of speed calculations in train operations.