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Please help me solve the following problem:

A boy leaves Arizona at 11:20am and travels by train to New York at 72km/h. He spends 2 hours in New York and then returns to Arizona by bus at 40km/h and at 15:15am. How far does it take the boy to travel from Arizona to New York by train, if the bus route is 2km longer than the train journey?

I gather you meant ""How LONG does it take to travel..." not "How FAR does it take to travel..." -- yes?

Also, you have that the boy gets back to AZ at 15:15 AM?? What is 15:15 AM??? 15:15 would be 3:15 PM...

is that what you mean? Is this the same day, or the next day? Please clarify!

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Answers by Expert:

Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Over 15 years teaching at the college level.**Organizations**

NCTM, NYSMATYC, AMATYC, MAA, NYSUT, AFT.**Education/Credentials**

B.S. in Mathematics from Rensselaer Polytechnic Institute

M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook