An object 40km in first 1/2 hour 8km in second 1/2 hour 50km in third 1/2 hour and 30km in fourth 1/2 hour. The average speed is
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An object 40km in first 1/2 hour 8km in second 1/2 hour 50km in third 1/2 hour and 30km in fourth 1/2 hour. The average speed is
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Answer:
The average speed of the object is 64km/h
Explanation:
total distance = 40+8+50+30 = 128km
total time = 0.5+0.5+0.5+0.5 = 2h