the speed of a stream is 2 km / h and that of a man in still water is 6 km/ h the time taken by the man to swim 35 km upstream will be
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Step-by-step explanation:. upstream. the total speed must be 6-2 = 4 km/h distance= 35km. therefore time taken = distance /speed. = 35/4. therefore time = 8hour 75 min
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