Question 412471
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Hi
Let x represent the speed of the current
Question states***  |D = r*t
 (12-x)3hr = (12+x)2hr
Solving for x
   36-24 = 5x
    12 = 5x
     x = 2.4mph current
CHECKING our Answer*** 
   (9.6)*3 = (14.4)*2