the speed of a boat in still water is 10km/hr. if it can travel 26 km downstream and 14 km upstream in the same time find the speed of stream
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here is ur answer hope you like
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smartqueen:
sorry but your answer is wrong right answer is 3,thanks for the procedure
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Let the speed of the stream be x km/hr.
Given that speed of the boat in still water = 10km/hr.
Then, Speed upstream = (10 - x)km/hr.
Then, Speed downstream = (10 + x)km/hr.
Given that Time is taken to travel 26km downstream = Time taken to travel 14 km upstream.
= > 26/(10 + x) = 14/(10 - x)
= > 26(10 - x) = 14(10 + x)
= > 260 - 26x = 140 + 14x
= > 260 - 140 = 40x
= > 120 = 40x
= > x = 3.
Therefore the speed of the stream = 3km/hr.
Hope this helps!
Given that speed of the boat in still water = 10km/hr.
Then, Speed upstream = (10 - x)km/hr.
Then, Speed downstream = (10 + x)km/hr.
Given that Time is taken to travel 26km downstream = Time taken to travel 14 km upstream.
= > 26/(10 + x) = 14/(10 - x)
= > 26(10 - x) = 14(10 + x)
= > 260 - 26x = 140 + 14x
= > 260 - 140 = 40x
= > 120 = 40x
= > x = 3.
Therefore the speed of the stream = 3km/hr.
Hope this helps!
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