A car goes with a speed of 40km/hr for 4 hrs. and then goes 20 km for 30min. It returns the same distance with the speed of 60km/hr. What is the average speed of car?
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A speed of a car is 40 km/hr for 4hrs is 160 km in 4hrs. In 30 min it goes 20km . The car
covers distance in 4hrs 30min is 180 km .
In return the speed of car is 60 km/hr.
The car returns in 3hrs. The average of car is in return is 60km/hr
covers distance in 4hrs 30min is 180 km .
In return the speed of car is 60 km/hr.
The car returns in 3hrs. The average of car is in return is 60km/hr
Yashraj18:
by this method how average speed is 60.
average speed=180+180/4.5+3
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