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 back. What is the total distance traveled by the man? Choose the correct choice from the following:
A) 7.82 km
B) 6 km
C) 5.76 km
D) 5.66 km
E) 10 km

Rationale: "m = 8 s = 1.2 ds = 9.2 us = 6.8 x / 9.2 + x / 6.8 = 1 x = 3.91 d = 3.91 * 2 = 7.82 answer : a"
Answer: A