A person can swim in still water at 6 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 14km?	Pick one.
A) 3.5
B) 4.5
C) 5
D) 9
E) 6

Rationale: "m = 6 s = 2 us = 6 - 2 = 4 d = 42 t = 14 / 4 = 3.5 answer : a"
Answer: A