In water, the direction along the stream is called downstream. 2. Upstream. In water, the direction against the stream is called upstream. 3. Let the speed of a boat in still water be u km/hr and the speed of the stream be v km/hr, then. Speed downstream = (u + v) km/hr. Speed upstream = (u - v) km/hr. 4. A boat moves down the stream at the rate of 1 km in 6 minutes and up the stream at the rate of 1 km in 10 minutes. The speed of the current is. A). 2 km/hr. B). 1 km/hr. C). km/hr. D). km/hr. View Answer. Correct Answer: 2 km/hr. v 1 + v 2 = 1 k m 6 k m = 10 k m / h r. When the boat moves against the current of the river (i.e. in opposite direction), then the relative speed of the boat is the difference in the speed of the boat and stream. It is known as upstream speed. Remember it with UP as going up the hill means against the direction of the force (speed) of the river.
Boats & Streams - Solved Examples - Q 1 - Speed of boat in still water is 16 km/hr. If the speed of the stream is 4 km/hr, find its downstream and upstream speeds.� Q 9 - A boat running downstream covers a distance of 30 kms in 2 hrs. While coming back the boat takes 6 hrs to cover
Average Speed Of Boat And Stream 732 the same distance. If the speed of the current is half that of the boat, what is the speed of the boat? A - 15 km/hr. B - 54 km/hr. Boats and Streams Terms & Formulas. Practice More Aptitude Questions and Answers. Boats and Streams Quiz � Aptitude Test. Quiz Name. Boats and Streams. Category. Aptitude.� Speed of a boat in standing water is 9 kmph and the speed of the stream is kmph. A man rows to a place at a distance of km and comes back to the starting point. The total time taken by him is. Boats and Streams shortcut methods in quantitative aptitude which can be useful for competitive exams like Bank PO, SSC, IBPS, CAT, CSAT, CMAT, AFCAT etc.� Rule 1: If speed of boat or swimmer is x km/h and the speed of stream is y km/h then, Speed of boat or swimmer upstream = (x ? y) km/h. Speed of boat or swimmer downstream = (x + y) km/h. Rule 2: Speed of boat or swimmer in still water is given by. Speed of stream is given by. Shortcut methods for Boats and Streams. Rule 1: A man can row certain distance downstream in t1 hours and returns the same distance upstream in t2 hours. If the speed of stream is y km/h, then the speed of man in still water is given by. Example.
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