SOLUTION: Aeroplane flies fromA to B @ a speed of 750km/h. on return tri there was astrong tail wind and aeroplane flew 900/km. The return flight took 20minutes less than the original. How m
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Question 953809: Aeroplane flies fromA to B @ a speed of 750km/h. on return tri there was astrong tail wind and aeroplane flew 900/km. The return flight took 20minutes less than the original. How many hours did the return trip take? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Aeroplane flies fromA to B @ a speed of 750km/h. on return trip there was a strong tail wind and aeroplane flew 900/km. The return flight took 20minutes less than the original. How many hours did the return trip take?
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A to B DATA:
rate = 750 kmh ;time = x hrs ; distance = 750x km
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B to A DATA:
rate = 900 kmh ; time = x-(1/5) hrs ; distance = 900(x-(1/5)) km
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Distance = distance
750x = 900x - 180
150x = 180
x = 6/5 hrs (A to B time)
x-(1/5) = 1 hr (B to A time)
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Cheers,
Stan H.
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