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Upstream Downstream Boat Math Problem We are going to discuss the word problems based on upstream downstream concept.A boat goes 12 km upstream and 40 km downstream in 8 hours. It can go 16 km up. Sep 16, �� These Boats and Streams Difficult Problems will help you for your exam preparation. Model Questions and Answers on Boats and Streams Problems. 1. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 miles/hour, the speed of the stream is A. 2m/hr B. 2. A man rows downstream by covering a certain distance in p1 hours and returns the same distance upstream in p2 hours. If the speed of the stream is s km/hr, then the speed of the man in still water will be: A man takes same number of times say m times to row upstream as to row downstream a river.
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In this type, you will be finding speed of boat in still water i. You have to remember a very simple formula as shown below. Find the speed of the boat in still water. Solution: From the question, you can write down the below values. You have to substitute the above values in the below formula.

This type is similar to type 1. But there is one difference. Here you have to find speed of stream and not the speed of the boat. You have to use the below formula to find speed of stream. Example Question 2: A man rows downstream 30 km and upstream 12 km. If he takes 4 hours to cover each distance, then the velocity of the current is:. Solution: In this question, downstream and upstream speeds are not given directly. Hence you have to calculate them first. 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? Post a Comment. In this article on Boats and Streams Basic To Advance Chapter 1 , we are sharing some important formulae used in Boats and Streams with important questions which are usually asked in Quantitative Aptitude section of various competitive examinations.

Once you have understood the basics of Boats and Streams, you can solve any problem from this topic in no time. Labels: Quant. No comments:. Newer Post Older Post Home.

Subscribe to: Post Comments Atom. Raghuram Rajan. The speed of the stream in km per hour is : A. A boat goes 8 km in one hour along the stream and 2 km in one hour against the stream. A swimmer swims from a point A against a current for 5 minutes and then swims backwards in favour of the current for the next 5 minutes and comes to the point B.

Two boats A and B start towards each other from two places, km apart. If A proceeds down and B up the stream, they will meet after : A. A man goes downstream with a boat to some destination and returns upstream to his original place in 5 hours. If the boat takes 3 hours to go to a place and come back, the distance of the place is A. A boat goes 24 km upstream and 28 km downstream in 6 hours.

It goes 30 km upstream and 21 km downstream in 6 hours and 30 minutes. Find the speed of the boat in still water.

A boat goes 30 km upstream and 44 km downstream in 10 hrs. In 13 hrs, it can go 40 km upstream and 55 km downstream, then the speed of the boat in still water is A. Skip to content. None of these 5. None of these 6.

Data inadequate Ratio and Proportion. Profit And Loss. Simple Interest. Compound Interest. Time and Work. Time Speed and Distance.

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