Time and Distance - General Aptitude

Q1:

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

ANS:C - 71.11 km/hr

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