sabahat drove her car to college with speed of 20 km/ h . while she 4eturned to her home along the same route the speed of the car was 30 km/h . calculate the average speed of the car during entire journey
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Answer:
24 km/h
Explanation:
avg speed =total distance /total time
=2x/x/20+x/30
=2x/5x/60
=2x×60/5x
=24 km /hr
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