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When we move upstream, our speed gets deducted from the speed of the stream. 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? Boat and stream problems formula listeners 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 Boat And Stream Problems Formula Json is running at 1. How far is the place? A man rows a certain distance downstream in X hours and returns the same listenrs 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 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 boat and stream problems formula listeners shore.

Both boats remain at their sides for 10 minutes before starting. On the return trip they meet at m from the other shore. Find the width of the river. Using iwe. Using ii. Stream: It implies that the water in the river is moving or flowing. Upstream: Going against the flow of the river. Downstream: Going with forkula flow of the river. Still water: It implies that the speed of water is zero generally, in a lake.

Quicker Method to solve the Questions. Let the required distance be sstream km. Boat and stream problems formula listeners Let the width of the river be x. Let a, b be the speeds of the ferries. Home G. Maths Reasoning Computer English.

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Jan 09, �� A boat is said to go downstream, if the boat goes in the direction of stream. A boat is said to go upstream, if the boat goes opposite to the direction of stream. Basic Formulas. If speed of boat in still water is b km/hr and speed of stream is s km/hr, Speed of boat in downstream = (b + s) km/hr, since the boat goes with the stream of water. If the speed of boat or swimmer is x km/h and the speed of the stream is y km/h then, Speed of boat upstream = (x ? y) km/h; Downstream: When the boat moves with the current of the river (i.e. in the same direction), then the relative speed of the boat is the sum of the speed of the boat and stream. It is known as downstream speed. ? b = (d+u) / 2 which gives the speed of the boat in terms of downstream and upstream speed. Subtracting the equation (i) and (ii), we get d � u = 2w ? w = (d-u) / 2 which gives the speed of the stream in terms of downstream and upstream speed. You should remember these boats and streams formulas. Must Read Boat and Streams Articles.

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