Answer: The average speed of Rohit is 25 miles per hour.
Step-by-step explanation: Given that Rohit drove around the city for 3 hours and he traveled a total distance of 75 miles.
We are to find Rohit's average speed.
We know that

For the given situation, we have
distance, d = 75 miles and time, t = 3 hours.
So, the average speed of Rohit is given by

Thus, the average speed of Rohit is 25 miles per hour.