Question 1208884
Let's call the distance in miles traveled one way {{{d}}} .
The time in hours to travel downstream is {{{d/22}}}.
The time in hours to travel upstream is {{{d/14}}}.
{{{d/14=d/22+4}}} --> {{{d/14-d/22=4}}} --> {{{(22d-14d)/(14*22)=4}}} --> {{{8d/(14*22)=4}}} --> 
{{{d=4*14*22/8}}} --> {{{d=14*11}} --> {{{d=154}}}
The upstream travel time was {{{d/14=14*11/14=11}}}
The downstream travel time was {{{d/22=14*11/22=7}}}