a car moves 120 km at a speed of 40km/h and returns back at a speed of 60km/h.calculate its average speed
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Total distance= distance travelled on going+
distance travelled on coming.
=120+120=240km.
Time taken in going= distance / speed
=120/40=3hr
Similarly,
Time taken in coming=120/60=2hr
Total time taken=3+2=5hr
Therefore,
Average Speed=Total distance travelled/
Total time taken.
=240/5=48km/hr
Therefore the average speed for the journey is 48km/hr.
Hope it helps . Please mark this as brainliest answer.
distance travelled on coming.
=120+120=240km.
Time taken in going= distance / speed
=120/40=3hr
Similarly,
Time taken in coming=120/60=2hr
Total time taken=3+2=5hr
Therefore,
Average Speed=Total distance travelled/
Total time taken.
=240/5=48km/hr
Therefore the average speed for the journey is 48km/hr.
Hope it helps . Please mark this as brainliest answer.
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