SOLUTION: jose left the white house and drove towards the recycling plant an a average speed of 40 km/h. rob left some time later driving in the same direction at an average speed of 48 km/h
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Question 459305: jose left the white house and drove towards the recycling plant an a average speed of 40 km/h. rob left some time later driving in the same direction at an average speed of 48 km/h. after driving 5 hours rob caught up with jose. how long did jose drive before rob caught up.
You can put this solution on YOUR website! jose left the white house and drove towards the recycling plant an a average speed of 40 km/h. rob left some time later driving in the same direction at an average speed of 48 km/h. after driving 5 hours rob caught up with jose. how long did jose drive before rob caught up.
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Jose has a head start on Rob. Let t = Jose's "head start" time
Since Jose's traveling at 40 mph, the initial separation between them is 40t
Their relative speeds = 48 - 40 = 8 km/h
Their separation distance is made up in 5 h.
So we can write 40t = 8 km/h * 5 h
Solving for t gives t = 1 hr.
Therefore, Jose drove a total of 6 hrs.
