**A boat can cover a distance of 56 km downstream in 3.5 hours. The ratio of the boat in still water and the speed of stream is 3 : 1. How much time (in hours) will the boat take to cover a distance of 41.6 km downstream?** A) 2.6 B) 1.8 C) 2.1 D) 1.5 Click Link for Answer