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- 24 km/h
- 48 km/h
- 60 km/h
- 40 km/h

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Solution

Verified by Toppr

time taken in traveling the distance first x will be t1=x40

and the time taken in traveling the distance second x will be t2=x60

now the average velocity can be calculated as V=total distancetotal time=2xx40+x60=2×40×6040+60=48Km/h

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