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Mathematics, 18.02.2020 06:27 kameronmouton
A motorboat goes downstream 30 kilometre and again return to the starting point in a total time 4 hours and 30 minutes if the speed of steam 5 per kilometre find the speed of the motor still water
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A motorboat goes downstream 30 kilometre and again return to the starting point in a total time 4 ho...
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