Question

A train from Philadelphia to Boston left Philadelphia at 1 pm and arrived to Boston at 4 pm. What was its average speed if the distance it covered was 270 miles?

Answer 1

90 miles per hour is the average speed.

Explanation:

The formula for Average Speed can be given as follows:

`\text{Average Speed}= \frac{\text{Total Distance Traveled}} {\text{Total Time Taken}}`

Here time taken is from 1 PM to 4 PM i.e.

Total Time taken = (4-1) hours = 3 hours

Also, it is given that the Total distance covered = 270 miles

As per the formula above:

`\text{Average Speed} = (270)/(3)\\\Rightarrow \text{Average Speed} = 90\ miles/hour`

So, answer is: 270 miles/ hour is the average speed of the train from Philadelphia to Boston.