(f) A boy goes from his house to school by bus at a speed of 20 km h-' and returns back through the same route at a speed of 30 km h-1. The average speed of his journey is :
Answers
Answered by
0
Answer:
25km/hr
Explanation:
25 km/h
20 + 30 /2
= 50/2
= 25km/hr
Answered by
0
Answer:
the first answer is correct
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