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1 Answer

4 hrs at 60 km/hr = 240 km

2 hrs at 80 km/hr = 160 km

Total distance = 240 + 160 = 400 km

Total time = 4 + 2 = 6 hrs

400 km / 6 hrs = 66 2/3 km/hr or about 66.67 km/hr
by Level 13 User (103k points)

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