Question

when car moving on a straight road covers one third of the distance between 20 km per hour and the rest with 60 km per hour the average speed is

Answer 1

Average speed = total distance travelled/total time taken

Given that:-
Total distance = 60+40=100
Total time = 1hr+1hr = 2hr

Using above formula we get =
100÷2 = 50

So the total average speed of the car is 50km/hr