Calculate how long it will take a swimmer to swim a distance of 12km against the current of a river which flows at 1.2 km/hr, given that he can swim in still water at 5km/h  Choices:
A) 3.26
B) 3.16
C) 2.34
D) 3.98
E) 3.17
swim in still water at = 5   speed of river= 1.2   US = 5 - 1.2= 
<gadget id="calculator">5 - 1.2</gadget>
<output>3.8</output>
3.8   Distance= 12   T = 12/3.8 = 3.16   Answer: 3.16
<result>B</result>
Calculate how long it will take a swimmer to swim a distance of 12km against the current of a river which flows at 1.2 km/hr, given that he can swim in still water at 5km/h