Question
A man rows upstream 10 km and downstream 15 km
taking 5 hours each. Find the speed of current.Solution
Distance upstream= 10 km, time taken to row upstream = 5 hrs. Speed upstream = 10/ 5 = 2 km/hr. Distance downstream= 15 km, Time taken to row downstream = 5 hrs. Speed downstream = 15 /5 = 3 km/hr. Speed of the current =(3 – 2) x ½ = 0.5 km / hr
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