Answer:
The speed of a trip from City A to City B is 50 miles/hr.
Step-by-step explanation:
Given that,
A person covers the trip of 400 mile in 8 hours.
We need to calculate the speed
Using formula of speed

Where, v = speed
d = distance
t = time
Put the value into the formula


Hence, The speed of a trip from City A to City B is 50 miles/hr.