Question 413041
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Hi
Let x and (140-x)represent distance traveled by 40mph and 30mph cyclist respectively
Question states***  Note: t = D/r and is the same for both cylists
 {{{x/40 = (140-x)/30}}}
    30x = 40(140-x)
   70x = 5600
     x = 80mi, distance traveled by 40mph cyclist.  t = 80mi/40mph = 2hr
CHECKING our Answer***
  2hr = 60mi/30mph