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Boats and streams Formula | Boats and Streams Shortcuts - Hitbullseye
This is the aptitude questions and answers section on "Boats and Streams Important Formulas" with explanation for various interview, competitive examination and entrance test. Solved examples with detailed answer description, explanation are given and it would be easy to understand.� If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then: Speed downstream = (u + v) km/hr. Speed upstream = (u - v) km/hr. If the speed downstream is a km/hr and the speed upstream is b km/hr, then: Speed in still water. 1. (a + b) km/hr. 2. Rate of stream. 1. (a - b) km/hr. 2. Read more: Boats and Streams - General Questions. Boats and Streams - Data Sufficiency 1. Boats and Streams - Data Sufficiency 2. Current Affairs Interview Questions and Answers. Boats & Streams is one of the favorite areas of examiners. Questions from this area appear in a significant proportion in the quant section of almost all the competitive exams. Before starting with the questions, go through the basic concepts of the topic. Important Terms. Still Water: If the speed of the water is zero, i.e. water is stationary, then it is called still water.� If upstream is denoted as US and downstream as DS, then: Speed of boat or swimmer in still water = 1/2 (Ds + Us) Speed of stream =1/2 (Ds - Us). If a man is capable of rowing at the speed of u km/hr in still water, rows the equal distance up and down the stream which flows at a rate of v km/hr, then the average speed throughout the journey. A man can row a boat in still water at u km/hr. Derivation of formula 8 (boats and streams). Let the speed of a man in still water = $x$ km/hr speed of the stream = $y$ km/hr. Assume he travels a distance $d$ km upstream and come back the same distance downstream, and total time taken = $t$ hours. Speed downstream $=(x+y)$ Speed upstream $=(x-y)$. Time taken to travel upstream $=\dfrac{d}{x-y}$ Time taken to travel downstream $=\dfrac{d}{x+y}$. Total time $=t$ $\dfrac{d}{x-y}+\dfrac{d}{x+y}=t\\ d(x+y)+d(x-y)=t(x+y)(x-y)\\ 2dx=t(x+y)(x-y)\\ 2dx=t(x^2-y^2)\\ d=\dfrac{t(x^2-y^2). }{2x}$.

Before learning the concepts of the exam one must be aware of the terms that are used in the questions. When the boat moves against the current of the river i.

It is known as upstream speed. Remember it with UP as going up the hill means against the direction of the force speed of the river. When the boat moves with the current of the river i. It is known as downstream speed.

Remember it with DOWN as going down the hill means towards the direction of the force speed of the river. Type 1 : When the distance covered by boat in downstream is same as the distance covered by boat upstream. The speed of boat in still water is x and speed of stream is y then ratio of time taken in going upstream and downstream is,.

It takes him twice as long as to row up as to row down. Find the rate of the stream of the river. A man can row certain distance downstream in 2 hours and returns the same distance upstream in 6 hours. If the speed of stream is 1. Find the distance between two places? A professional swimmer challenged himself to cross a small river and back.

If it took him 15 mins more to cover the distance upstream than downstream, then find the width of the river? Find the average speed of a boat in a round trip between two places 18 km apart. Attempt subject wise questions in our new practise section' Click here. Download Gradeup , the best government exam app for Preparation. Umesh Kumar Jan 22, Shruti Kulkarni Jun 19, Saurabh Ghanghoriya Aug 11, Saumya Sen Aug 13, Devendra Singh Aug 13, Nirmal Rai Dec 28, Prashant Kumar Yadav Jan 1, Kaptan Jan 6, Janardan Jan 28, Parnab Mallick Read in Hindi.

Share via. Example Find the average speed of a boat in a round trip between two places 18 km apart. Share this article. Member since Aug Shruti Kulkarni Jun 19, Report. Very important topic but is explained in nice way. Saurabh Ghanghoriya Aug 11, Report. Thanx ma'am. Saumya Sen Aug 13, Report. Devendra Singh Aug 13, Report. Mam weekly or monthly kaun see current tyar kre grade up ki kyoki for ssc nd ntpc plz suggest.

Nirmal Rai Dec 28, Report. Where can we download the pdf of this topic covered. Prashant Kumar Yadav Jan 1, Report. Please in hindi. Kaptan Jan 6, Report. Janardan Jan 28, Report. Related Posts. GradeStack Learning Pvt.

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I don't caring how outrageous your vessel is, lots) hostile :) Usually thing worse is the backed-up bilge upon the sailboat. Upon dual ninety six-inch pieces of cardif I went in I was in the total lot of formula of boat and stream :), sailboats as well as do a little fishing boats. The Trainer Magnum E-Collection from Scold was selected by Plunge into Debate as the 2010 "Editor's Choice" for saltwater bait-casting reels?

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