Physics, 19.10.2019 06:10 quinteroalex2001

The average speed of a person in driving to school is 30 km/h. on the return trip along with the same route ,the average speed is 25km/h. what is the average speed for the round trip to the school

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The average speed of a person in driving to school is 30 km/h. on the return trip along with the sam...