SOLUTION: you leave your house driving at 50km/hr. your friend leaves your house 15 minutes later going in the same direction at 68 km/hr. how long will it take your friends to catch you?

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Question 337876: you leave your house driving at 50km/hr. your friend leaves your house 15 minutes later going in the same direction at 68 km/hr. how long will it take your friends to catch you?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
12.5 km lead
18 km/h overtake speed
12.5/18=0.69 hrs=41.5 min