Skin From Drawdown: 2018 #29

This is the exact problem found on 12 WLT 4. The skin calculates to 3.0.

It's pretty simple; I include it to show a few testing tricks:
1. FVF is given as "shrinkage factor" (STB/bbl); merely invert for 1.2 bbl/STB.
2. The answer 3.0 splits the difference between options (A) 3.2 & (B) 2.7; the closest answer is "A".

This, as I said, is simple. But these tricks can unsettle anyone under stress, so they are ideal to practice on "plug-and-chug" problems like this.