A man on a tour travels the first 120 km at 60 km/h and the next 12 km at 80 km/h. What is the average speed of the journey?

A man on a tour travels the first 120 km at 60 km/h and the next 12 km

1.	A man on a tour travels the first 120 km at 60 km/h and the next 12 km at 80 km/h. What is the average speed of the journey?
A.	61.39 km/h
B.	68.57 km/h
C.	71.11 km/h
D.	69.23 km/h
Answer» B. 68.57 km/h

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A man on a tour travels the first 120 km at 60 km/h and the next 12 km at 80 km/h. What is the average speed of the journey?

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