When a boat goes upstream what will be the speed and same for downstream. I am not able to form the equations. Somewhere i saw the equations but those are very big equations i don’t know how to solve them please help to solve this question. Here in the question, a boat goes 24km upstream and 28km downstream in 6 hours. It goes 30km upstream and 21km downstream in 6 hours and 30 minutes. We have to find the speed of the boat on still water is?. Video solution will be more helpful.thank you!!!!!