Question 838158
_______________speed____________time___________distance
Tom______________r______________{{{25/60}}}__________(____)
Louis___________10______________{{{10/60}}}___________{{{d=10*10/60=5/3}}}



Nothing was indicated about their directions or routes.  This solution will assume that they each go the same distance.


Once found Louis distance, we know Tom's distance may be equal, so


_______________speed____________time___________distance
Tom______________r______________{{{25/60}}}__________({{{5/3}}})
Louis___________10______________{{{10/60}}}___________{{{d=10*10/60=5/3}}}


Finding Tom's rate, r, is simply a matter or Rate*Time=Distance, solved for Rate.
{{{r(25/60)=5/3}}}
{{{r(5/12)=5/3}}}
{{{r=(5/3)(12/5)}}}
{{{r=12/3=4 }}}
4 kilometers per hour




-Note, 1 hour = 60 minutes