math

an aircraft flew at 400km/h to its destination and returned at 500km/h. If the total trip took 9h, how far did it fly?

The answer is 2000km but how

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asked by allan
  1. distancethere=400*t
    distanceback=500(9-t)
    but the distances are the same
    400t=500*9-500t
    900t=5*900
    t= 5 hrs
    distance there= 400*5=2000km

  2. Wtf I dont get it
    I thought it was 1050?????

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