A train travels with a speed of 60 km /h from station a to statikn b and then comes back with a speed of 80 km/h fron station b to station
a. find the average speed
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Average speed = {(60 + 80)/2} km/hr
= (140/2) km/hr
= 70 km/hr
= (140/2) km/hr
= 70 km/hr
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