Question

A fishennan can row 2 km against the stream in 20 minutes and return in 15 minutes. the speed of current is?

Answer 1

let the fisherman speed be x km/hr and the speed of the current be c km/hr

speed of fisherman during upstream = 6km/hr ⇒ x - c = 6

speed of fisherman during downstream = 8km/hr ⇒ x + c = 8

solving both equations we get speed of fisherman = x = 7km/hr and the speed of the current = c = 1km/hr

Answer 2

1/3 km/hr is your answer