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Boat Upstream & Downstream - Tips, Tricks, Formula & Sample Questions
Boats and Streams shortcut methods in quantitative aptitude which can be useful for competitive exams like Bank PO, SSC, IBPS, CAT, CSAT, CMAT, AFCAT etc.� Downstream: If a boat or a swimmer moves in the same direction of the stream then it is called downstream. Points to remember. When speed of boat or a swimmer is given then it normally means speed in still water. Basic Formulas of Boats and Streams. Rule 1: If speed of boat or swimmer is x km/h and the speed of stream is y km/h then, Speed of boat or swimmer upstream = (x ? y) km/h. Speed of boat or swimmer downstream = (x + y) km/h. 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 $=t$ $\dfrac{d}{x-y}+\dfrac{d}{x+y}=t\\ d(x+y)+d(x-y)=t(x+y)(x-y)\\ 2dx=t(x+y)(x-y)\\ 2dx=t(x^2-y^2)\\ d=\dfrac{t(x^2-y^2). }{2x}$. � ������� ������ ��������� ����� ��������� � ���� ������� ��������������.

So this is very important chapter to learn for the exam. Boats and Streams is a very important chapter of Quantitative Aptitude. Questions of this topic is related to find out the speed of boats in the streams of water. Basically stream is the force of water. Water flows from up to down. And here comes two main thing of this chapter, one is Downstream and another is Upstream. So, If the boat is floating in the water with the stream then the speed of the boat will be � Sum of downstream speed and boat speed.

And, If the boat is floating in the water against the stream then the speed of the boat will be � Upstream speed minus the boat speed. So, this is all basic concepts of Boats and Streams chapter. Learn this formulas and concept very carefully. If you have face any problem in this chapter of you have anything to say regarding this topic, then feel free to ask us. We will answer your query here in www. Home Search. So, now we will discuss the basic concepts and formulas of Boats and Streams.

What is Boats and Streams? What is Downstream? The direction, which way the water flows is called Downstream. What is Upstream? The opposite direction of flowing water is called Upstream. Leave a Comment Cancel reply.

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