A reconnaissance plane
flies 425 km away from its base at 212 km/h, then flies back to its base at 305
km/h. What is its average speed?
The total speed is 425 km
Going speed is 212 km/h
Time = 2.004716981132075
Total speed = 425 km
Coming speed = 305 km/h
Time = 1.39344262295082
Total time = 3.398159604082895
Avg. speed = 3.398159604082895 /425 km
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