find the speed of the boat going upstream and downstream | Wyzant Ask An Expert Nov 21, �� If the speed downstream is a km/hr and the speed upstream is b km/hr, then. Boat Speed in still water = ? (Downstream Speed + Upstream Speed) = 1/2 x (a + b) km/hr. Rate of stream = ? (Downstream Speed � Upstream Speed) = 1/2 x (a � b) km/hr. Average Speed of Boat = {(Upstream Speed ? Downstream Speed) / Boat�s Speed in Still Water}. Downstream speed = 6+2 = 8 kmph. Similarly, Upstream speed = = 4 kmph. 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. Sep 13, �� 5. The speed of a boat is 18 km/hr in upstream and the speed of the stream is 6 km/hr. find out the speed of the boat in downstream. Solution: Upstream speed = 18 Speed of the stream (S) = 6 According to the formula, Upstream = B - S 18 = B � 6 Speed of the boat (B) = 24 Now, Downstream = B + S = 24 + 6 = 30 km/hr (answer) 6.
Conclusion:

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Let the rate along the current be x kmph. The speed of the current is : a 1 kmph b 2 kmph c 3 kmph Average Speed Of Boat In Upstream And Downstream Number d 2. If athul rows 16 km upstream and 24 km down steam taking 4 hours each, then the speed of the stream a 1kmph b kmph c 1.

Share this: Twitter Facebook. Like this: Like Loading By continuing to use this website, you agree to their use. To find out more, including how to control cookies, see here: Cookie Policy. Speed of Boat or Swimmer: when a boat or swimmer moves in water of the river, it means either boat or swimmer having certain speed in still water and this is known as the speed of boat or swimmer in the still water.

Downstream: If the movement of boat or swimmer in the river is along with the direction of the stream, means both boat and stream having movement in the same direction, then it is known as downstream.

Upstream: It is exactly opposite to the downstream. Here the movement of boat or swimmer in the river is opposite to the direction of the stream, it means movement of boat or swimmer against to the direction of the stream of river water. Example 4: A boat takes 8h to row 48 km downstream and 12h to row the same distance upstream.

Note: This formula applicable only for equal distances. It takes him twice as long to row up as to row down the river. Find the rate of the stream?

If stream is flowing at a speed of Y, it takes time T to row to a place and back, then. When the river is running at 2. Concept 3: A man rows a certain distance downstream in X h and returns the same distance in Y h. Example 3: Kiran can row a certain distance downstream in 12h and can return the same distance in 18h.

Example 4: Ravi rows in still water with a speed of 4. Find his average speed for the whole journey, if the river is flowing with a speed of 1. Concept 6 : If a man covers L km distance in t1 hr along the direction of river and he covers same distance in t2 hr against the direction of river, then. Example 6: A boat covers Average Speed Of Boat In Upstream And Downstream Tab 20 km in an hour with downstream and covers the same distance in 2h with upstream.

Then find the speed of the boat in still water and speed of stream? A man can row his boat at a speed of speed of 4 kmph and he finds that the time taken rowing upstream is double to that taken downstream. Find the speed of the stream in kmph.

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream. Terms of Use. SBI Clerk. SBI PO.

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