Answer:
Average speed of train = 4x/3 miles per hour
Step-by-step explanation:
A train travels x miles in 3/4 hours
Let's find the distance train travels in 1 hour.
i.e distance travel in one hour = x /(3/4)
or distance travel in one hour = 4x/3
So,
Average speed of train = distance / time
Average speed of train = ( 4x/3 / 1 )
Average speed of train = 4x/3 miles per hour
