Ek and travel first 160 kilometres at 64 kilometre per hour and the next 160 kilometre at
80 kilometre per hour what is the average speed for the first 320 kilometre of the tour
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first 160 kilometres ⇒ 64km/h
next 160 kilometres ⇒ 80km/h
average speed = (64+80)/2 = 144/2 = 72km/h
next 160 kilometres ⇒ 80km/h
average speed = (64+80)/2 = 144/2 = 72km/h
tharun33333:
160/64+160/80=9/2. 320*2/9=71.7
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