# SOLUTION: If train A leaves the station going 60 miles per hour and train B leaves one hour later going 85 miles per hour, how long will it take train B to catch up with train A?

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 Question 208562: If train A leaves the station going 60 miles per hour and train B leaves one hour later going 85 miles per hour, how long will it take train B to catch up with train A?Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!D=RT D=60T FOR TRAIN A. D=85(T-1) FOR THRAIN B. KNOWING THAT THE DISTANCES ARE THE SAME WE SET THE DISTANCE EQUATIONS EQUAL TO EACH OTHER. 60T=85(T-1) 60T=85T-85 60T-85T=-85 -25T=-85 T=-85/-25 T=3.4 HOURS AFTER TRAIN A LEAVES TRAIN B WILL CATCH UP TO IT. PROOF: 60*3.4=85(3.4-1) 204=85*2.4 204=204