I'm completing the missing data to solve the problem. Time= 8 hours.
Answer:
The man would travel 240 Km. Choice (a)
Explanation:
Rate of change
We are given the distance driven of 180 km in a time of 6 hours. We'll find the distance traveled if the man keeps driving at the same rate by 8 hours.
The rate of change of the distance over time is called velocity (as a vector) or speed (as a scalar). The speed is calculated as the ratio of the distance x by the time t:


v=30\ km/h
If we want to calculate the distance, we must solve the equation for x:
x=v.t
For a time of t=8 hours:
x=30*8=240
The man would travel 240 Km. Choice (a)