A man can row 8 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?
Choose one:
A) 3.58
B) 3.68
C) 3.78
D) 3.88
E) 3.98
M = 8   S = 1.2   DS = 8 + 1.2= 
<gadget id="calculator">8 + 1.2</gadget>
<output>9.2</output>
9.2   US= 8- 1.2= 
<gadget id="calculator">8- 1.2</gadget>
<output>6.8</output>
6.8   x/9.2 + x/6.8= 1   x = 3.68.Answer: 3.68
<result>B</result>
A man can row 8 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?