What is the average speed of 3.0 h at 80.0 kmh and 4.0 h at 60.0 kmh?
5k/ph depending if your going down a hill or up 1========================================Let's put a somewhat finer point on it:First, you traveled 80 km/hr for 3 hours, covering (80 x 3) = 240 km.Then, you traveled 60 km/hr for 4 hours, covering (60 x 4) = another 240 km.At the end of that time, you had traveled for (3 + 4) = 7 hours and covered (240 + 240) = 480 km.Your average speed is (480 / 7) = 68.57 km/hr (rounded)
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