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Sonu Kumar
Answers (1)
Let the distance between the two station be x While going speed = 54 km/hr So, Time taken = x/54 While returning speed = 36 km/hr So, Time taken = x/36 Total time = x/54 + x/36 = 5x/108 Average speed = total distance / total time = x+x/5x/108 = 2x/5x/108 =
