Question

A car travels first 100 km at 60 km / hr and the next 100 km at 50 km/hr. the average speed of 200 kms is

Answer 1

time = distance/speed
100/60 and 100/50
avg speed = total distance / total time
so total distance = 200km and time = 3.66 hrs
200/3.66 = 54.64 km/hr

Answer 2

Answer:

is 15680/241

or 65.062

km/h