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 360km of the tour is?
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Speed = distance/time
Time= distance/speed
Time= 160/64
Time= 2.5 hour
In the second case:
Distance= 160
Speed= 80
Time= distance/speed
Time=160/80
Time=2 hours
Average speed= total distance travelled/total time taken
Average speed= 360/4.5
Average speed= 80km/hr
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