A man swims 320 m against the water current in 4 minutes. In still water, he is able to swim with a speed 5 times that of the current. Calculate the speed of the current, in m/min
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In water,
The net speed of man = Vm-Vc
where Vm is speed of man and Vc is speed of current.
as distance(in m) =Speed(in m/min)×time(in min) (as we need answer in m/min)
Vm-Vc=320/4
Vm-Vc=80m/min
now it's given Vm=5Vc
4Vc=80m/min
Vc=60/3= 20m/min
The net speed of man = Vm-Vc
where Vm is speed of man and Vc is speed of current.
as distance(in m) =Speed(in m/min)×time(in min) (as we need answer in m/min)
Vm-Vc=320/4
Vm-Vc=80m/min
now it's given Vm=5Vc
4Vc=80m/min
Vc=60/3= 20m/min
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