21 km/h
B. 3.27
5.12 hours
3 hours and 16 minutes
3.27 hrs
To calculate the time needed, we use the formula: time = distance/speed. So, for a 715 km journey at an average speed of 110 km/h, the time needed would be 715 km / 110 km/h = 6.5 hours.
21 km square
272
577 cm
0.021 km
21 km square
Time = Distance / Speed So, time = 392/120 hours = 3.266... hours = 3 hours 16 minutes.