If a man goes 24 km downstream in 4 hours and returns against the stream in 12 hours, then the speed of the stream in km/hr is -

Question: If a man goes 24 km downstream in 4 hours and returns against the stream in 12 hours, then the speed of the stream in km/hr is -

Solution:
Downstream speed = 24/4 = 6 km/hr
Upstream speed = 24/12 = 2 km/hr

∴ Speed of the stream = (6 - 2)/2 = 2 km/hr