On double track line between stations K and M went against each other two trains. The first train passed the distance between stations for 3.5 hours, the second, which had an average speed of 12 km/h more passed for 3.05 hours.

Calculate the distance between stations K and M.

Correct result:

s =  284.7 km


s1=s2=s 3.5v1=3.05(v1+12) v1= km/h v2=v1+12=93.33 km/h  s=v13.5= km

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