Question 342326
Rate*Time=Distance
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In the {{{2}}} hours, the first train has already traveled {{{210}}} miles.
The distance from the station is then,
{{{D[1]=R[1]*t+210}}}
1.{{{D[1]=105t+210}}}
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2.{{{D[2]=135t}}}
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Solve for {{{D=D[1]=D[2]}}}
From eq. 2,
{{{t=D/135}}}
Substitute into eq. 1,
{{{D=105(D/135)+210}}}
{{{135D=105D+28350}}}
{{{30D=28350}}}
{{{highlight(D=945)}}} miles