A man can row 5 kmph in still water. When the river is running at 2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?  Choose the correct answer:	A) 5.75	B) 5.7	C) 5.76	D) 4.2	E) 5.71
M = 5   S = 2   4.2S = 7   US = 3   x/7 + x/3 = 1   x = 2.1   4.2 = 2.1 * 2= 
<gadget id="calculator">2.1 * 2</gadget>
<output>4.2</output>
4.2 Answer: 4.2
<result>D</result>
A man can row 5 kmph in still water. When the river is running at 2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?