A car left from a Place A at 8.12 am and reached the Place B, 180 miles distant at 11.57 am. What was its average speed in miles per hour?
45 miles/hr.
70 miles/hr.
48 miles/hr.
60 miles/hr.
Explanation:
Given, total distance=180 miles.
Time = 3hrs 45 min = 15/4hrs.
Average speed = Total Distance / Total Time = 180/(15/4) = 48 miles/hr.