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A man wishes to cross a river
perpendicularly. In still water,
he takes 4 minutes to cross the
river, but In flowing river, he
takes 5 minutes. If the river Is
100 m wide, then the speed of
the flowing water of the river
perpendicularly. In still water,
he takes 4 minutes to cross the
river, but In flowing river, he
takes 5 minutes. If the river Is
100 m wide, then the speed of
the flowing water of the river
- A12 m /sec
- B15 m /sed
- C20 m /sec
- D25 m /sec
Answer not set