Problema Solution

In still water a boat averages 8mph it takes the same amount of time to travel 22 miles downstream with the current as 10 mies upstream against the current whats the rate of the water current?

Answer provided by our tutors

TIME  = DISTANCE/VELOCITY

if v velocity of curren and V velocity of boat

22/(V+v) = 10/(V-v)

22V-22v = 10V+10v

12V = 32v

but here V = 8, so

v = 12/32*8

v = 4mph