Boat Upstream & Downstream - Tips, Tricks, Formula & Sample Questions

Hey I am Ramandeep Singh. Do you want me to help you? Login Sign Up. Downstream: If the boat is moving in the direction of the stream. Upstream: If quwstions boat is moving in the direction opposite to the direction of the stream.

Boat is moving with the steam of water. Boat is moving against the direction of the stream. Proof Speed Of Boat In Still Water Formula Uk of Basic Formula. Downstream speed is always greater than the upward speed. Formlua man can row a boat 9 kmph in still water. He takes double the time to move upstream than to move the downstream � the same distance. Find the speed of the stream. A boat runs at 20 kmph along the stream and 10 kmph against the stream.

Find the ratio of speed of the boat in still water to that of the speed of the stream. Example 3. Find the time taken by the boatman to row 4 kilometres downstream and return to his starting point, if the speed or rate of stream is 2 kilometres per hour and the speed speed of boat in still water formula questions the boat is 6 kilometres per hour.

Example 4. If the speed of the stream is 2 km per hour, and the speed of the boat in still waters is 10 km per hour then find the time taken to cover 60 kms downstream. Example 5. Find the speed of the stream when a boat takes 5 hours to travel 60 kms downstream at a rate of 10 kms per hour in still water. Example 6.

A boat covers a certain distance in one hour downstream with the speed of 10 kmph questioms still water speed of boat in still water formula questions the speed of current is speeed kmph.

Then find out the distance travelled. Answer Example speed of boat in still water formula questions. A boat takes 6 hours to cover 36 km downstream and 8 hours to cover 32 km upstream. Then the speed of the boat in still water is? Example 8. Then the speed of the stream is?

Example 9. If a man rows 6 km downstream in 3 hours and 2 km upstream in 2 hours then how long will he take to cover 9 kms in stationary still water? Labels: quant. Newer Post Older Post Home. Can I help you?

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Average Speed. Important: If the boat takes t down and t up respectively to travel same downstream and upstream distance, then we the following relation:. Question 4: A boat takes 6 hours to go downstream and comes back upstream in 12 hours. Find the ratio of the speed of the boat and the speed of the stream. Question 5: A man rows 10 km upstream and back again to the starting point in 55 min. If the speed of the stream is 2 kmph, then find the speed of the boat in still water.

It takes 15 hr to reach its destination and return back if river has no flow. For the same journey it takes 16 hr if river is flowing. Find speed of flow of river. Your email address will not be published. Skip to content Boats and Streams is an essential topic for many competitive exams. Boats and Streams � Terminologies: Stream: It implies that the water in the river is moving or flowing.

Standard Method: Let one side the distance be d km. Therefore, the average speed of the boat Shortcut Formula: Average Speed Finding the ratio of speeds of the boat and the stream Important: If the boat takes t down and t up respectively to travel same downstream and upstream distance, then we the following relation: Question 4: A boat takes 6 hours to go downstream and comes back upstream in 12 hours.

Standard Method: Let the common distance be d km. Finding the total time of the journey. Shortcut Formula: Let the speed of the boat in still water be x kmph. 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 back. On the return trip they meet at m from the other shore. Find the width of the river. Using i , we get. 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 Speed Of The Boat In Still Water Formula Notes zero generally, in a lake. Quicker Method to solve the Questions. Let the required distance be x km. Solution: Let the width of the river be x. Let a, b be the speeds of the ferries.

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