a man can row 3 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 . what is the total distance traveled by the man ?
"m = 3 s = 1.2 ds = 3.6 us = 1.8 x / 3.6 + x / 1.8 = 1 x = 1.2 d = 1.2 * 2 = 2.4 answer : c"
multiply(divide(multiply(add(3, 1.2), subtract(3, 1.2)), add(add(3, 1.2), subtract(3, 1.2))), const_2)