SOLUTION: a plane flies to Sydney airport and back,It took one hour less time to get there than it did to get back.The average speed on the trip there wsa 220 km/h.The average speed on the w
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Question 729588: a plane flies to Sydney airport and back,It took one hour less time to get there than it did to get back.The average speed on the trip there wsa 220 km/h.The average speed on the way back was 200km/h.How many hours did the trip there take? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let speed of plane be x kmph
time there - time return = 1
x/200 - x/220 = 1
220x-200x=220*200
20x= 220*200
x= 220*200/20
x= 2200 km
