Question 1021380
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Hi  
I. Both vehicles travel the same Distance
d[45mph] = d[r]   
II. Second travels 3 1/3 hr  and first 5 1/3 hr
{{{ 45mph(16hr/3) = r(10hr/3) }}}  | Distance = rt
 45mph(16hr)/10 = r
  720mph/10 = r
 72mph = r