A man on tour travels first 160 km at 56 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:	Answers.
A) 31.11 km/hr	B) 35.55 km/hr	C) 65.9 km/hr	D) 36 km/hr	E) 71 km/hr
Total time taken = 160/56 + 160/80 = 2720/560 = 34/7 hours   --&gt; Average speed = 320 x 7/34 = 65.9 km/hr.   Answer : 65.9 km/hr.
<result>C</result>
A man on tour travels first 160 km at 56 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is: