Question

a man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. the average speed for the first 320 km of the tour is (in km/hr):

Answer 1

Answer:

71.1111 km/hr

Step-by-step explanation:

i) 160 km divided 64 km/hr = 2.5 hr

ii) 160 km divided 80 km/hr = 2 hr

total hour = 4.5 hr

total distance = 320 km

Average speed = 320 divided by 4.5

                          = 71.1111 km/hr