Answer: He travels 280 miles.
Step-by-step explanation:
Speed = Distance / Time
Distance = speed x time
Distance covered at first 2 hours at 55 mph
= distance = 55 X 2= 101 miles
Distance covered in next hour at 70mph
Distance = 70 x 1= 70 miles
Distance covered in the last 2 hours at 50mph
Distance = 50 x 2= 100 miles
Total distance traveled = 110+70+ 100= 280 miles.
