A man swimming in a river which is flowing at 3 1/2 km/ hr finds that in a given time he can swim twice as far downstream as he can swim upstream. What will be his speed in still water?

A man swimming in a river which is flowing at 3 1/2 km/ hr finds that in a given time he can swim twice as far downstream as he can swim upstream. What will be his speed in still water?
QuestionA man swimming in a river which is flowing at 3 1/2 km/ hr finds that in a given time he can swim twice as far downstream as he can swim upstream. What will be his speed in still water?
Typemultiple_choice
Option9.5 km/hrincorrect
Option10 lm/hrincorrect
Option10.5 km/hrcorrect
Option11 km/hrincorrect
quantitative aptitude
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