A man can row 5 kmph in still water. When the river is running at 2.3 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?
Select.
A) 2.91  B) 3.48  C) 2.98  D) 3.78  E) 4.21
M = 5   S = 2.3   3.78S = 6.3   US = 2.7   x/6.3 + x/2.7 = 1   x = 1.89   3.78 = 1.89* 2= 
<gadget id="calculator">1.89* 2</gadget>
<output>3.78</output>
3.78   Answer: 3.78
<result>D</result>
A man can row 5 kmph in still water. When the river is running at 2.3 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?