user: Question: What is the lowest total score among skaters from West Germany with a rank of 20 and a figure skating score less than 74.85?
Columns: ['Rank', 'Name', 'Nation', 'Placings', 'Figures', 'Free', 'Total']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'real']
Sample row: [1.0, 'Jeannette Altwegg', 'United Kingdom', '8', 114.73, 77.99, 192.72]
SQL:

assistant: SELECT MIN("Total") FROM "Table" WHERE "Nation" = 'West Germany' AND "Rank" = 20.0 AND "Figures" < 74.85;