Serge M. answered 01/08/17
Tutor
5
(11)
Professor of Accounting, retired. Ph.D., CPA
135 km / 4.5 hr = 30 km / hr
30 km/hr is the average speed
Shweta S.
asked 01/08/17
Serge M. answered 01/08/17
Professor of Accounting, retired. Ph.D., CPA
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