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Boat Upstream & Downstream - Tips, Tricks, Formula & Sample Questions
There are two different contexts for upstream/downstream in git: remotes, and time/history. Upstream/downstream with respect to remotes is, the downstream repo will be pulling from the upstream repo (changes will flow downstream naturally). Upstream/downstream with respect to time/history can be confusing, because upstream in time means downstream in history, and vice-versa (genealogy terminology works much better here - parent/ancestor/child/descendant). � charlesreid1 Jul 18 '15 at 6.� , that simply means there is no absolute upstream repo or downstream repo. Those notions are always relative between two repos and depends on the way data flows: If "yourRepo" has declared "otherRepo" as a remote one, then. Upstream questions are a subsection of the boat-stream or the boat-driver problems. Questions on the relative speed of the river or the stream with respect to the boat and the speed of the boat with respect to the river bank are present in this section. Let us begin.� This is what we denote with the letter �r�. Therefore the speed upstream is (b � r) and the speed downstream is (b + r). Let us see a few solved examples and test these formulae. Browse more Topics under Stream Boat Problems. Downstream. Stream Boat Problems Practice Questions. Example 1: The speed of the boat is 10 km/h in still water. UPSTREAM: This refers to anything having to do with the exploration and production of oil and natural gas. Geologic surveys and any information gathering used to locate specific areas where minerals are likely to be found is commonly called �exploration.� The term �upstream� also includes the steps involved in the actual drilling and bringing oil and natural gas resources to the surface, referred to as �production�. MIDSTREAM� The final sector of the oil and natural gas industry is known as �downstream.� This includes everything involved in turning crude oil and natural gas into thousands of finished products we depend on every day. Some of the more obvious products are fuels like gasoline, diesel, kerosene, jet fuels, heating oils and asphalt for building roads.

Boats and Streams is an essential topic for many competitive exams. Many varieties of questions can be framed from this area. We use the fundamental concepts of time speed and distance only to solve elementary questions on Boats and Streams. However, some types of questions are tricky and take lots of time to solve by applying textbook approach. Fortunately, there are some shortcut Upstream And Downstream Formula Question formulas available to handle such problems. In this article, besides an understanding of the basic concepts of boat sand streams, we will also learn few tricks to solve some exceptional questions.

Some shortcut formulas related to the speed of boats and streams is handy as we require them frequently. Below are the lists of the formulas:. Question 1: 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.

Question 2: A man rows 18 km down a river in 4 hours with the stream and returns in 12 hours. Find his speed and also the speed of the stream. Question The speed of the boat in the still water is 6 kpmh, and the speed of the stream is 2 kmph. The boat goes a certain distance down the stream and comes back upstream to the same place from where it started.

Find the average speed of the boat in the entire journey. 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: Upstream And Downstream Problems Formula For 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 Upstream And Downstream Problems Formula Ca 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. Leave a Comment Cancel Reply Your email address will not be published.

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