Answer:
t = 7.75 seconds
Step-by-step explanation:
Given that,
Speed of the car, s = 20 m/s
Distance covered by the car, d = 155 meters
Let t is the time taken by the person to go 155 meters. We can use to following equation of find t i.e.


Substituting all the values in above formula as:

t = 7.75 seconds
So, the time taken by the car is 7.75 seconds. Hence, this is the required solution.