3 hours 45 minutes.
It travels 100 miles in 2.5 hours.
100 miles / 4 hours = 25 miles per hour.
40mph
25mph 100 miles / 4 hours = the amount of miles per each hour
the answer is 60 mph (plato)
100 mi/4 hr = 25 miles per hour.
2.5 * 40 = 100 miles
50miles/hour
1.81 hrs
40 x 2.5 = 100 miles.
average velocity = miles/hours = (100 + 30)/(2 + 1) = 130/3 ≈ 43.33 miles/hour
Average speed = distance/time = 100/4 miles per hour = 25 mph.