I had 2 beers and a rum and coke that barely had any rum in it and I got an EtG test about 60 hrs later I weigh 140 and I did a lot of walking after what are my chances of passing

There are several studies using measured doses of alcohol in the range of 2-3 drinks. All found EtG detectable only for about 31-32 hours max. See Helander & Beck, 2004 (http://www.clinchem.org/content/50/5/936.full.pdf); Dahl, 2002 (http://www.ncbi.nlm.nih.gov/pubmed/12054359?dopt=Abstract)*

One study using 3 shots of vodka found one participant (of 10) with detectable EtG at 48 hours, although the average was 30 hours consistent with the other studies. See Hoiseth, 2007 (http://alcalc.oxfordjournals.org/content/43/2/187.full)*

*the problem with reliance on this information is the very small number of subjects studied. The combined number of subjects = 15. The number of subjects ever tested for elimination is under 200 spread across 20 studies each using different methods. There has never been a large scale study of EtG synthesis or elimination.