SOLUTION: If two trains leave New Haven traveling in opposite directions one is traveling at 75 miles per hour and they are 405 miles apart in 3 hours what speed is the second train travelin

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Question 337879: If two trains leave New Haven traveling in opposite directions one is traveling at 75 miles per hour and they are 405 miles apart in 3 hours what speed is the second train traveling at.
Found 2 solutions by rfer, stanbon:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
405/3=135 apart in one hr
135-75=60 mph

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If two trains leave New Haven traveling in opposite directions one is traveling at 75 miles per hour and they are 405 miles apart in 3 hours what speed is the second train traveling at.
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Let the rate of the 2nd train be "x mph".
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The separation rate of the two trains is "75+x" mph
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Equation:
3(75+x) = 405
75+x = 135
x = 60 mph (speed of the 2nd train)
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Cheers,
Stan H.