The question did not say average, otherwise it would have been very easy. The reason I did not take the average is because it does not make sense to me. Now, the sum does not either. However, if one were only liquidating one at a time, the answer could be the sum. I think the numbers were as troubleshooter said, however, I think the 5.xx was closer to 6 than 5, so I just couldn't think of any way to get 5, other than to take the average, which just didn't make sense. So, at least the sum came to approximately 10, so I figured it was one of the choices. Anyway, I guess we'll never know. I did not look back at the original readings. Perhaps if I read it two dozen times, I will be able to find the answer. I'm not sure how the question writers can write such questions where there is no real way to find the answer. In this case, we all know how to calculate the liquidity duration of an individual position. For a portfolio, I don't know, to me, if you could (and I don't see why you couldn't) liquidate both on the same days, the answer, logically, would be the max of the two (which was not one of the choices). Frustrating.

