a man can row 2 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 = 2 s = 1.2 ds = 2.4 us = 0.8 x / 1.2 + x / 0.8 = 1 x = 0.6 d = 0.6 * 2 = 1.2 answer : c"
multiply(divide(multiply(add(2, 1.2), subtract(2, 1.2)), add(add(2, 1.2), subtract(2, 1.2))), const_2)