Question 726728
1. A boat is heading across a river at a velocity of 25 mph. The river is flowing downstream at 10 mph. What is the actual velocity of the boat?
-----------
{{{v^2 = 25^2 + 10^2 = 735}}}
v = sqrt(735)
v =~ 27.11 mi/hr
--------------------
PS  Rivers always flow downstream