a car is moveing A to B at average speed of 60km/h and return back with 40km/h find average speed of whole juruny
Answers
Answer:
The answer is as below average 48Kms.
I would like to explain more for those that do not follow
One needs to consider the distance factor to arrive at the average speed as this is for a specific distance not time.
An alternative question to demonstrate the difference, “a driver goes out and drives for an hour at 40km/hr” then “drives for a further hour at 60km/hr”
What is his average speed, answer 50km/hr as he would cover 100kms in two hours.
Going back to the first scenario, remember we are talking Km per hour.
So say it was 40kms from A to B and he drives at 40km an hour it would take an hour.
Coming back he drives at 60kms an hour which is 1km per minute so it would only take 40 minutes.
So total journey is 80kms, total time is 1hr 40 mins, hence average speed per hour is 48 minutes.
Explanation:
please follow me