Question 835298
Randy, slower, left earlier, traveled for more time, some t+3.  Later, Jimmy on motorcycle, traveled t amount of time, at faster speed.  You want to find t which both of them used, for the equal amount of distance (for "catchup").


{{{highlight(18(t+3)=54t)}}}, both members being that distance.
{{{18t+54=54t}}}
{{{54=54t-18t}}}
{{{36t=54}}}
{{{t=54/36=27*2/(2*18)=3*3*3*2/(2*2*3*3)=3/2}}}
-
{{{highlight(1&1/2)}}} hours to catchup.