# SOLUTION: Marie started jogging at 08:30 at 9 km/h 15 minutes later, Heather starts jogging at 12 km/h how long did it take Heather to catch up with Marie?

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 Word Problems: Travel and Distance Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Travel Word Problems Question 417598: Marie started jogging at 08:30 at 9 km/h 15 minutes later, Heather starts jogging at 12 km/h how long did it take Heather to catch up with Marie?Answer by josmiceli(9678)   (Show Source): You can put this solution on YOUR website!How far did Marie get in 1/4 hr? km ------------ The equation for Heather is: ------------- The equation for Marie is: ------------- Note that is the distance Heather has to go to catch up with Marie ------------- By substitution: Note that is the time from 8:30 + 15 min to the time they meet hr Heather catches Marie 1 hr after 8:30, or 9:30