Solving a speed time and distance word problem. Math question in the description.
Complete math problem.
A truck covered the distance between 2 towns at an average speed of 50 mi/h. It moved 65 mi/h for the first 2/5 of the distance before the truck driver stopped for a 1 1/2 hour break. After that, he continued driving for another 195 miles till he arrived at his destination. At what speed was the truck moving during the last 195 miles of the trip?