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A Man Whose Speed Is 4.5 Kmph In Still Water Rows To A Certain Upstream Point And Back To The Starting Point In A River Which Flows At 1.5 Kmph, Find His Average Speed For The Total Journey ? |
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Answer» Speed of Man = 4.5 kmph Speed of STREAM = 1.5 kmph Speed in DOWNSTREAM = 6 kmph Speed in UpStream = 3 kmph AVERAGE Speed = (2 x 6 x 3)/9 = 4 kmph. Speed of Man = 4.5 kmph Speed of stream = 1.5 kmph Speed in DownStream = 6 kmph Speed in UpStream = 3 kmph Average Speed = (2 x 6 x 3)/9 = 4 kmph. |
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