A motorcyclist drive from P to Q with uniform speed of 30 kmh- and return with a speed of v kmh-
If the average speed of the trip is 40 kmh-, then what is the value of v?
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Answer:
Let the length of the line segment AB be x m
The time taken is given as t=distance covered/speed
Total time = t1+t2 =x/30 +x/20= 5x/60 hrs.
Average speed = Total distance/Total time =
2x/5x/60=24 km/h
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Answer:
24kmh −1
Let the length of the line segment AB be x m
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