Answer:
Assets                  FMV                  Adjusted Basis       Built-in Gain 
Cash                    $200,000         $200,000               $0 
Inventory             $80,000           $40,000                  $40,000 
Land and Bldg    $220,000         $170,000                 $50,000
total                     $500,000
A) Since SOA is making a liquidating distribution, it will be taxed as if they sold their assets at fair market value:
- distribution of the inventory results in a $40,000 ordinary gain = $40,000 x 30% = $12,000 in taxes
- distribution of the land and building results in a $50,000 Sec. §1231 gain = $50,000 x 30% = $15,000 in taxes
total recognized gain = $90,000 (= $40,000 + $50,000)
B) After taxes are paid, SOA's total assets = $500,000 - $27,000 = $473,000 which must be divided equally between Kevin and Bob. Each owner should receive $236,500. 
So Kevin's gain = $236,500 - $100,000 = $136,500