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? Example 3: A boat is rowed down boat and stream formula pdf images 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 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. 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 the 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.
Boat and stream formula pdf images the required distance be x km. Boat and stream formula pdf images Let the width of the river be x. Let a, b be the speeds of the ferries. Home G. Maths Reasoning Computer English. Share this page!
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