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December 22, 2014

December 22, 2014

Posted by **TUHITUHI** on Sunday, October 7, 2012 at 4:01am.

- math -
**Henry**, Monday, October 8, 2012 at 2:47pmTrain #1 = X km/h.

Train #2 = (X+7) km/h.

d1 + d2 = 300-34.

2x + 2(x+7) = 266

4x + 14 = 266

4x = 266-14 = 252

X = 63 km/h.

X+7 = 63+7 = 70 km/h.

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