A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. Find the average speed for first 320 km of tour.
70.11 km/hr
71.11 km/hr
72.11 km/hr
73.11 km/hr
Explanation:
We know Time = Distance/speed
So total time taken =(160/64+160/80)=92hours
Time taken for 320 Km = 320∗2/9
=71.11km/hr
We know Time = Distance/speed
So total time taken =(160/64+160/80)=92hours
Time taken for 320 Km = 320∗2/9
=71.11km/hr