. A boy goes from his house to school by bus at a speed of 23 km/h and returns back through the same route at a speed of 25 km /h . There fore average speed of his journey is _____ km / h
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. A boy goes from his house to school by bus at a speed of 23 km/h and returns back through the same route at a speed of 25 km /h . There fore average speed of his journey is _____ km / h
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Answer:
Explanation:
2V1V2/ V1+V2
2*23*25/23+25
23.9 km/ hr