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a man crosses a 320m wide river perpendicular to the current in 4min. if in still water he can swim with a speed 5/3 times that of the current, then the speed of the current, inm/min. is?

a man crosses a 320m wide river perpendicular to the current in 4min. if in still water he can swim with a speed 5/3 times that of the current, then the speed of the current, inm/min. is?
 

Grade:11

1 Answers

Ashok Bansal
24 Points
7 years ago
Time taken by man to cross the river is 320/V(M)=4 hence substituting V(M)=5/3*v(r) therefore answer comes to be 48

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