Question

With a head wind, a plane flew 3600 km in 10 hours. The return flight over the same route took only 9 hours. How do you find the wind speed and the plane’s air speed?

Answer 1

I found:
`"wind speed"=20(km)/(hr)`
`"plane speed"=380(km)/(hr)`

Explanation:

Have a look (`v_p="plane speed"` and `v_w="wind speed"`):
I used the fact that `"speed"="distance"/"time"`