SOLUTION: There are two trains. Train A heads north at 45 kph. Exactly 12 minutes after, Train B follows at a steady speed of 54 kph. How long does it take the Train A to overtake Train B?

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Question 1084604: There are two trains. Train A heads north at 45 kph. Exactly 12 minutes after, Train B follows at a steady speed of 54 kph. How long does it take the Train A to overtake Train B?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Question should be, "How long does it take train B to overtake train A ?"

Train A distance gone: 45%28t%2B1%2F5%29
Train B distance gone: 54%2At
12 minutes is %281%2F5%29hour.

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highlight%28t=1%29----- 1 hour for B to catch-up with A.