SOLUTION: A truck enters a highway driving 60 mph. a car enters the higway at the same place 10 minutes later and drives 65 mph in the same direction. From the time the car enters the highwa
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Question 910278: A truck enters a highway driving 60 mph. a car enters the higway at the same place 10 minutes later and drives 65 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck? Answer by richwmiller(17219) (Show Source):
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Gaining speed 65 -60= 5 mph
Headstart 60*0.16666667 =10 miles
Time to catch up 10/5=2 hours
Algebraic solution
60(t+0.16666667)=65t
60t+10.0=65t
10.0=65t-60t
10.0=5t
t=2.0 hours
Distance to meeting 2*65=130 miles
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