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A steamer goes downstream and covers the distance between two ports in 8 hours while it covers the same distance upstream in 10 hours. If the speed of the stream is 2 km/hr, find the speed of the steamer in still water. |
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Answer» Let the speed of the streamer in still water =X km/HR the speed of the stream is 3 km/hr Let the distance covered =d km Speed DOWNSTREAM =x+3 km/hr Time taken =5 hr Distance=speed × time d=5(x+3) d=5x+15 ............ (1) Speed UPSTREAM =x−3 km/hr Time taken =7 hr Distance=speed × time d=7(x−3) d=7x−21 ........... (2) From (1) and (2), 7x−21=5x+15 7x−5x=15+21 2x=36 x=18 km/hrStep-by-step explanation:pls mark as BRAINLIEST if correct |
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