SOLUTION: Exactly 12 minutes after the Smiths head north on the turnpike, the Jones set out from the same point to overtake them. The smiths travel at a steady 45 mph, the Jones travel at 54

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Exactly 12 minutes after the Smiths head north on the turnpike, the Jones set out from the same point to overtake them. The smiths travel at a steady 45 mph, the Jones travel at 54      Log On

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Question 501589: Exactly 12 minutes after the Smiths head north on the turnpike, the Jones set out from the same point to overtake them. The smiths travel at a steady 45 mph, the Jones travel at 54 mph. How long does it take the Jones to overtake the Smiths?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Smiths 45 mph
Jones 54 mph
Difference in time= 00:12 => 0.2 hours (0.2*45)=9
Smiths will have covered 9 miles before Jones starts
catch up distance= 9 miles
catch up speed = 54 -45 mph
catch up speed = 9 mph
Catchup time = catchup distance/catch up speed
catch up time= 9 / 9
catch up time= 1 hour
m.ananth@hotmail.ca