28. (a) A man travels 50 km. at a speed of 20 km. per hour and next 40 km. at a
speed of 30 km. per hour and returns at a speed of 25 km. per hour. What is
the average speed for the whole journey?
Answers
Answered by
1
Answer:
sorry bro I but don't know
Answered by
0
Answer:
50 km/h is equal to the journey
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