If there is someplace you can invest it, then I would do that. If it were me, I would just float this loan and invest the extra monies as long as its like tax saving accounts etc to use. If those are all filled up then I would maybe pay off the loan faster.

Its quite common for an employer to ask what is your salary expectations. So you see, I've had the opposite experience where all the companies ask me what is my expected salary range. Different people, different places....its different anyplace you go. My advice stands and its obvious from the comments its expected they ask what you expect to be paid. So eh, each has their own experience dont they.