<PRE><B>Question 269948</B>
you are traveling 250 miles round trip. 
it takes you 3 hours to get to your point and on the way back it took you 3 1/2 hours
 how much slow did you drive on the return trip?
:
One way would be 125 miles
:
{{{125/3}}} = 41.7 mph
{{{125/3.5}}} = 35.7 mph
-----------------------
differ ~  6 mph slower </PRE>