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Comparing Upstream vs. Downstream Oil & Gas Operations Dec 11, �� Write a program to find the speed of boat upstream and downstream. In order to calculate the speed of the boat upstream and downstream, we should know the speed of the boat in still water Average Speed Of Boat In Upstream And Downstream Korean (B) and speed of the stream (S) Examples: Input: B = 10, S = 4 Output: Speed Downstream = 14 km/hr Speed Upstream = 6 km/hr Input: B = 12, S = 5 Output: Speed Downstream = 17 km/hr Speed . Nov 21, �� 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. Average Speed of Boat = {(Upstream Speed ? Downstream Speed) / Boat�s Speed in Still Water}. Average speed of boat in downstream and upstream is given by Speed of boat in still water is given by Hence, the ratio of speed of boat in still water and to the average speed of boat in downstream and upstream .
Thus:

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Step 3: Calculation of speed of stream You have to substitute values got in steps 1 and 2 in below formula to find the speed of the stream. In this type, you have to find distance of places based on given conditions. Below example will help you to understand better. If in a river running at 2 km an hour, it takes him 40 minutes to row to a place and return back, how far off is the place? The man rows to a particular place and comes back. You have to calculate the distance of this place.

Let this distance be X. See the below diagram to understand clearly. Man starts from A, travels to B and comes back. Therefore, above equation becomes,. Also we have calculated downstream and upstream speeds at the start see values 1 and 2. In question, you can see that the man takes 40 minutes to travel to B and come back to A. You have to convert this to hours and apply in above equation. We are converting from minutes to hours because we are using speed values in km per hour units.

It takes him twice as long to row up as to row down the river. Find the rate of the stream. Solution: Step 1: Calculate upstream and Average Speed Of Boat In Upstream And Downstream Limited downstream speeds. Based on our assumptions, you can easily calculate upstream and downstream speeds as shown below. In this type, you have to form linear equations based on conditions given. You have to solve those equations to find the answer. Example Question 5: Kavin can row 10 km upstream and 20 km downstream in 6 hours.

Also, he can row 20 km upstream and 15 km downstream in 9 hours. Find the rate of the current and the speed of the man in still water. Solution: You have to make below assumptions to form equations.

You already know the below equation. If you are not clear about this, refer to the equation in type 3. Similarly when we move downstream our speed gets added. Example 1: A boat travels equal distance upstream and downstream. What is the speed of the boat in still water? Example 2: A boat travels equal distance upstream and downstream.

What is the speed of the current? Example 3: 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. Solution: Downstream speed is ,. Speed of current Downstream�Upstream speed. When the river is running at 1.

How far is the place? A man rows a certain distance downstream in X hours and returns the same distance in Y hours. Example 5: Vikas can row a certain distance downstream in 6 hours and return the same distance in 9 hours. Example 6: Two ferries start at the same time from opposite sides of a river, travelling across the water on routes at Average Speed Of Boat In Upstream And Downstream Values right angles to the shores. Each boat travels at a constant speed though their speeds are different. They pass each other at a point m from the nearer shore.

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