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July 28, 2014

July 28, 2014

Posted by **nannypam** on Saturday, April 27, 2013 at 10:09am.

- math -
**Reiny**, Saturday, April 27, 2013 at 11:20amspeed of train A --- x

speed of train B ---- x+10

time for A's trip = 220/x

time for B's trip = 270/(x+10)

220/x = 270/(x+10)

270x = 220x + 2200

50x = 2200

x = 44

take it from here.

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