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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:

/ Aptitude, Time And Distance / By
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:

[A].

35.55 km/hr

[B].

36 km/hr

[C].

71.11 km/hr

[D].

71 km/hr

Answer: Option C

Explanation:

Total time taken = 160 + 160 hrs. = 9 hrs.
64 80 2
Average speed = 320 x 2 km/hr = 71.11 km/hr.
9