Answer:
The value of Time Will be

Step-by-step explanation:
Greetings!!!
Given values:-
Distance (s)= 90km
Speed(V)= 30km/m
Required value:-
Time(t)= ?
Solution:-
But before that how did I know Time is required
So, from the given word problem it says "How long will it take" which means it's indicating the time period.
Firstly, recall speed-distance equation
Substitute known variables into the equation
Solve for time
divide both sides of the equation by 30km/m

divide

If you have any questions tag me on comments.
Hope it helps!!!