Question 1126109
Bad example.  If you choose to ignore that, then you only need to use:


60 minutes is 1 hour.
60 seconds is 1 minute.
1 mile is 5280 feet.
1 marathon is 26 miles. (or 1 marathon is 42.195 kilometers).
100 cm is 1 meter.
2.54 cem is 1 inch.
1000 meters is 1 kilometer.


Use those which fit to convert each person's speed into KILOMETERS per HOUR (or whichever common unit you prefer).  Try to do all of the conversions on your own.  Example of Georgia,


Georgeia:   {{{(0.1/20)(kilometers/seconds)60(seconds/minute)60(minutes/hour)}}}

{{{(0.1*60*60)/20}}}

{{{0.1*3600/20}}}

{{{360/20}}}

{{{36/2}}}

{{{18}}},{{{kilometers}}}{{{per}}}{{{hour}}}