Time taken by boat to travel upstream and downstream = 4 hours Velocity of the stream, ? (a-b) = 2km/hr a-b = 4km/hr 1 velocity of the boat in still water = ? (a+b) = 4km/hr a+b = 8 km/hr 2 solving 1 x 2 we get a = 6 km/hr b = 2km/hr let the distance between A and B be x km x / . Vertical integration is often closely associated with vertical expansion which, in economics, is the growth of a business enterprise through the acquisition of companies that produce the intermediate goods needed by the business or help market and distribute its product. Such expansion is desired because it secures the supplies needed by the firm to produce its product and the market needed to. So upstream speed is = 25/5x = 5 km/hr. And downstream = 42/2y = 21 km/hr. So speed of boat is 1/2 * (5+21) A man rows to a certain place and comes back, but by mistake he covers 1/3rd more distance while coming back. The total time for this journey is 10 hours. The .
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
Boat Travel Upstream And Downstream Problems Apk 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 $=t$ $\dfrac{d}{x-y}+\dfrac{d}{x+y}=t\\ d(x+y)+d(x-y)=t(x+y)(x-y)\\ 2dx=t(x+y)(x-y)\\ 2dx=t(x^2-y^2)\\ d=\dfrac{t(x^2-y^2). }{2x}$. Boats and Streams Formula pages has all the conceptual Formulas for Boats and Streams. Speed downstream = (u + v) km/hr Speed upstream = (u � v) km/hr.� Boats and streams is one of the most common topics in quantitative section of all the job entrance myboat033 boatplans is also included in Aptitude section of many job test in companies like TCS, Infosys etc. This a very simple topic and require to direct application of Formulas to solve the question. Formulas for Boats and Streams Questions with Basic Concepts. 1. What is Downstream: It is related to the direction of water flow in respect with the object, when the object or body is flowing in direction of stream it is called as Downstream. Upstream Downstream formula. Classical Physics formulas list online.� This formula guides you to calculate the speed of a boat in upstream and downstream based on the speed of the boat in still water and speed of the stream or river flowing at a particular speed. Formula: Speed in upstream (km/hr) = a + b Speed in downstream (km/hr) = a - b. Where, a = Speed of a boat in still water (km/hr) b = Speed of the stream (km/hr).
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