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6. Steve's canoe goes 10 km/hour in still water. He paddled for 2 hours
with the current to reach a waterfront bar. Beverly paddled during
the return trip against the current and it took 6 hours to get back to
where they started. Find the speed of the current.

Answer :

Nichealw9go

By substitution:

2 (10 + c ) = 6 (10 - c)

= 20 + 2c = 60 - 6c

= 6c + 2c = 60 - 20

= 8c = 40

= C = 5 km/hr

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