A man can row 7 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 the correct answer
A) 3.3 B) 3.4 C) 3.5 D) 3.6 E) 3.7
M = 7   S = 1.2   DS = 7 + 1.2= 
<gadget id="calculator">7 + 1.2</gadget>
<output>8.2</output>
8.2   US= 7 - 1.2= 
<gadget id="calculator">7 - 1.2</gadget>
<output>5.8</output>
5.8   x/8.2 + x/5.8= 1   x = 3.40.Answer: 3.4
<result>B</result>
A man can row 7 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?