alexarodriguez9795 alexarodriguez9795

06-02-2024
Physics

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If the speed of the stream is 6 km/hr, and it takes 1 hour more to go upstream than to come downstream, what is the speed of the boat in still water?
a) 6 km/hr
b) 9 km/hr
c) 12 km/hr
d) 15 km/hr

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