Question 69468
With Current:
rate = r + 6
time = 3
distance = 3(r + 6)
Against Current:
rate = r - 6
time = 5
distance = 5(r - 6)
3(r + 6) = 5(r - 6)
3r + 18 = 5r - 30
48 = 2r
24km/hr = r