SOLUTION: a jet flew from tokyo to bangkok, a distance of 4800km. on return trip, the speed was decreased by 200 km/h. if the difference in times f the flights was 2 hours, what was the jet'

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Question 284358: a jet flew from tokyo to bangkok, a distance of 4800km. on return trip, the speed was decreased by 200 km/h. if the difference in times f the flights was 2 hours, what was the jet's speed from bangkok to tokyo?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
r*t=4800,
(r-200)*(t+2)=4800
negative answers are rejected
r = 800, t = 6
The jet went at 600 kph from bangkok to tokyo for 8 hours