Word problem

Asked by  | 5th May, 2009, 10:07: PM

Expert Answer:

Let the speed of aeroplane be x km/h

time taken to cover 3000 km is 3000/x 

If the speed is decreased by 100 km/h then 3000/(x-100)


3000/(x -100) - 3000/x = 1hr

solve this equation to get x

Answered by  | 6th May, 2009, 05:36: PM

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