A car travel 100km at a uniform speed of 40km/h and the next 125km at a uniform speed of 50 km/h find average speed of car
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A car travels a distance of 100km at a uniform speed of 40km/h.
Time taken to travel 100km=distance/speed = 100/40=5/2=2.5 hour
It travels next 125km at a uniform speed of 50km/h.
Time taken to travel 125km=distance/speed = 125/50=5/2=2.5 hour
Total distance travelled=100+125=225km
Total time taken=2.5+2.5=5.0hour
Average speed =
Total distance covered/Total time taken=
225/5=45km/h
Therefore, average speed of the car is 45km/h.
Time taken to travel 100km=distance/speed = 100/40=5/2=2.5 hour
It travels next 125km at a uniform speed of 50km/h.
Time taken to travel 125km=distance/speed = 125/50=5/2=2.5 hour
Total distance travelled=100+125=225km
Total time taken=2.5+2.5=5.0hour
Average speed =
Total distance covered/Total time taken=
225/5=45km/h
Therefore, average speed of the car is 45km/h.
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