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

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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:

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 + 160 hrs. = 9 hrs. 64 80 2

Average speed = 320 x 2 km/hr = 71.11 km/hr. 9

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