A travels 15 km with a speed of 30 km/h. He travels another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?

A travels 15 km with a speed of 30 km/h. He travels another 25 km with

1.	A travels 15 km with a speed of 30 km/h. He travels another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?
A.	40/3 km/h
B.	80/3 km/h
C.	20 km/h
D.	12 km/h
Answer» B. 80/3 km/h

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A travels 15 km with a speed of 30 km/h. He travels another 25 km with a speed of 10 km/h. What is his average speed for the entire journey?

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