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November 28, 2014

November 28, 2014

Posted by **Mary** on Sunday, September 13, 2009 at 12:22pm.

- algebra -
**MathMate**, Sunday, September 13, 2009 at 12:47pmLet D=distance

Time for passenger = D/60

Time for freight = D/40

"The passenger train travels the same distance in 1.5 h less time than the freight train. "

D/40 - D/60 = 1.5

Can you complete the rest?

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