Hi, guys
As of now, please don't post GMAT Focus problems. We are in the process of finding out what GMAC's policy is on reproducing these questions online. In the past, they have generally said that sites are not permitted to post any content for which users pay. GMAT Focus is in that group, so we are assuming they will say that we cannot discuss these here.
We'll let you know what they say as soon as we hear from them!