1.

The average speed of a person to school is 30km/h .on the return trip along the same route the average speed is 25km/h .find the average speed for the entire tril

Answer»

Average velocity of the person is 27.5 km/h.Explanation:Average SPEED is given by the FORMULAE :AVG speed =                    = 30 + 25 /2                    = 27.5 km/h



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