A driver travels from sunyani to Kumasi. The distance between the two cities is 40 miles. After 60 minutes, the driver makes a stop at bechem, which is 10 miles from sunyani. Thirty minutes later, he continues the journey to Kumasi in 60 minutes. After resting for 30 minutes he makes a return journey to sunyani in 120 minutes.
1. Find the average speed on return journey
To find the average speed on the return journey, we first need to calculate the total distance traveled and the total time taken for the return journey.
The driver traveled 10 miles from Bechem back to Sunyani. So, the total distance for the return journey is 10 miles.
The total time taken for the return journey is 120 minutes.
Therefore, the average speed on the return journey is:
Average speed = total distance / total time
Average speed = 10 miles / 120 minutes = 0.083 miles per minute
Therefore, the average speed on the return journey is 0.083 miles per minute.