Respuesta :
Answer:
We have been given that the upstream speed is  and the down stream speed is .
Let the fisherman traveled a distance of x miles.
The total time of the trip is 6 hours.
Relations between speed (s), time (t) and distance (d) is Â
Hence, Â
Time upstream + Â time downstream = 6
lcm = 10
=> Â
Cross multiplying, Â
x = 20 miles .. Answer.
Step-by-step explanation: