d = r * t
(80 * t/2) + (40 * t/2) = 60
120 t = 120 ... t = 1
r = d / t = 60 km / 1 hr = 60 km/hr
A car moves for half of its time at 80km/hr and for rest half of timeat 40km/hr. Total distance covered is 60km.What is the average speed of car
1 answer
1 answer