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Boats and Streams is an essential topic for many competitive exams. Many varieties of questions can be framed from this area. We use the fundamental concepts downshream time speed and distance only to solve elementary questions on Boats and Streams.

However, some types of questions are tricky and take lots of time to solve by applying textbook approach. Fortunately, there are some shortcut formulas available upstrwam handle such problems. Upstreamm this article, besides an understanding of the basic concepts of boat sand boat upstream and downstream formula ca, we will also learn few tricks to solve some exceptional questions.

Some shortcut formulas related to the speed of boats and streams is handy as we require them frequently. Below are the lists of the formulas:. Question 1: A boat is rowed down a river 28 km in 4 hours and up a river 12 km in 6 hours.

Find the speed of the boat and the river. Question 2: A man rows 18 km down a river in 4 hours with the downztream and returns in 12 hours. Find his speed and also the speed of the stream. Question The speed of the boat in the still water is 6 kpmh, and the speed dowmstream the stream is boat upstream and downstream formula ca kmph.

The boat Boat Upstream And Downstream Formula Online goes a certain distance down the stream and comes back upstream to the same place from where it started. Find the average speed of the boat in the entire journey. Average Speed. Important: If the boat takes t down and t up respectively to travel same downstream and upstream distance, then we the following relation:.

Question 4: A boat takes 6 hours to go downstream and comes back boar in 12 hours. Find the ratio of the speed of the boat and the speed of the stream. Question 5: A man rows 10 km upstream and back again to the starting point in 55 min.

If the speed of the stream is 2 kmph, then find the speed of the boat in boat upstream and downstream formula ca water. It takes 15 hr to reach its destination and return back if river has no flow.

For the same journey it takes 16 hr if river is flowing. Find xa of flow of river. Your email address will not be published. Skip to content Boats and Streams is an essential topic for many competitive exams. An and Streams � Terminologies: Stream: It implies that the water in the river is moving or flowing.

Standard Method: Let one side the distance be d km. Therefore, the average speed of the boat Downstrexm Formula: Average Speed Finding the ratio of speeds of the boat and the stream Important: If the boat takes t down and t up respectively to Boat Upstream And Downstream Formula Question travel same downstream and upstream distance, then we the following relation: Question 4: A boat takes 6 hours to go downstream and comes back upshream in 12 hours.

Standard Method: Let the boat upstream and downstream formula ca distance be d km. Finding the total time of the journey. Shortcut Formula: Let the speed of the boat in still water be x kmph. Leave a Comment Cancel Reply Your email address will not be published. Join Now.

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Nov 21, �� Speed upstream = (u � v) km/hr. If the speed downstream is a km/hr and the speed upstream is b km/hr, then Boat Speed in still water = ? (Downstream Speed + Upstream Speed) = 1/2 x (a + b) km/hr. Rate of stream = ? (Downstream Speed � Upstream Speed) = 1/2 x (a � b) km/hr. Upstream Speed of the man = (B - S) = (6 - 3) km/h = 3 km/h Time taken = tan 6 = 2 3 hours Dis ce Time Speed When upstream and downstream speed of boat or swimmer given. As mentioned in the previous two points, the downstream speed and upstream speed of boat or swimmer is (B + S) and (B - S) respectively. Speed of boat or swimmer in still water File Size: KB. Formulas and Quick Tricks for Boats and Streams. Upstream: In water, the direction against the stream is called upstream. Downstream: In water, the direction along the stream is called downstream. Let the speed of a boat in still water be u km/hr and the speed of the stream be v km/hr, then.

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