A tugboat goes 160 miles up stream in 20 hours, return trip downstream takes 5 hours. Find speed of tugboat without the current and the speed of the current

1 answer

distance = rate x time

In this case we have:

distance = (rate + current) x time

and

distance = (rate - current) x time

160 = 20(r-c)
160 = 5(r + c)

160 = 20r - 20c
160 = 5r + 5c

Can you solve from here?