Question 464138
a boat can maintain a constant speed of 50mil/hr relative to the water. the boat makes a trip up stream in 57min; the return trip takes 43min. what is the speed of the current?
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The general solution is:

c = v*(diff in t)/(sum of t)
c = 50*(57 - 43)/(57 + 43) = 50*14/100
c = 7 mph