A man on tour travels first 160 km at 64 km/he and the next 160 km at 80 km/hr.

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A man on tour travels first 160 km at 64 km/he and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is?

Options:

A . 35.55 km/hr

B . 36 km/hr

C . 71.11 km/hr

D . 71 km/hr

Answer: Option C

Total time taken = (160/64 + 160/8) = 9/2 hrs.Average speed = 320 * 2/9 = 71.11 km/hr.

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