Question 388842:  two helicopters take off at the same time from the same airport and travel in opposite directions. The northbound aircraft travels at 350 km/h and the southbound aircraft is 25 km/h slower. In how many hours will the two helicopters be 2025 km apart? 
 Answer by MCAT(6)      (Show Source): 
You can  put this solution on YOUR website!  Time     Northbound Helicopeter      Southbound Helicopter   Total Distance apart 
       (distance from the airport):(distance from the airport): (from each other) 
Hour 1:------350km----------------------------325km-----------------675km 
Hour 2:------700km-----------------------------650km----------------1350km 
Hour 3:------1050km----------------------------975km----------------2025km
 
 
Therefore, they will be 2025km apart in three hours!
 
Note: Ignore the dashes, they're supposed to be blank spances, without them, this wouldn't look like a chart. 
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