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[Solved] The speed of a boat in still water is v. The boat is to make a round t | SolutionInn A boat travels 40km upstream and 40km downstream in a total time of 14 hours. What is the speed of the boat in still water? Algebra -> Customizable Word Problem Solvers -> Travel -> SOLUTION: The current in a stream moves at a speed of 3km/h. Speed of the boat or swimmer in still water = 1/2 * (Downstream Speed + Upstream Speed) = 1/2 * (18+12) = 15 km/hr Speed of the current = 1/2 * (Downstream Speed - Upstream Speed) = 1/2 * () = 3 km/hr Q 3 - A man swims downstream 28 km in 4 hrs and upstream 12 km in 3 hrs. Find his speed in still water and also the speed of the current.
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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.

While, returning because of water resistance, it took 1 hour 15 minutes to cover the same distance. What was the average speed during the whole journey?

Sol In this problem we cannot directly use the formula first we need to find the upstream speed and speed in still water. This can be done as follows,. Example 5: A person challenged himself to cross a small river and back.

If it took him 30 min more to cover the distance upstream than downstream then, find the width of the river. If a boat takes t hours to row to a place and return back, then the distance between the two places can be estimated through.

If in a river running at 1. Sol To solve this question we will simply use the formula given above. In this case, t is 50 minutes b is 1. The above examples are just few simple and basic application of the methods stated along with them. These formulas can come in handy and can save lot of your time in exam. You can find questions and problems involving simultaneous use of more than one formula at times. But if you know the correct utilization of them you can solve any problem easily.

And, this smoothness comes with practice so the more you varied questions you try the more you will learn and become better at solving them. A motor boat travels 28 km upstream and then returns downstream to the starting point. Q 7 - A boat travels 32 km upstream and 60 km downstream in 9 hr. Also it travels 40 km upstream and 84 km downstream in 12 hrs. Find the speed of the boat in still water and rate of the current.

It takes 6 hrs to swim to a certain distance and return to the starting point. Find the distance between the two points. Q 9 - A boat running downstream covers a distance of 30 kms in 2 hrs.

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