A battalion of soldiers is ordered to swim across a river 500 ft wide river. At what minimum
rate should they swim perpendicular to river flow in order to avoid being washed away by the waterfall 300 ft downstream. The speed of current being 3 m.p.h. (m.p.h. = miles per hour)
Text Solution
Verified by ExpertsThe correct answer is:
B
The time taken to cross river will be equal to just cross the river at waterfall after drifting 300 ft.
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