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?
CREATE TABLE "ladies" (
  "rank" real,
  "name" text,
  "nation" text,
  "placings" text,
  "figures" real,
  "free" real,
  "total" real
);
SELECT MIN("total") FROM "ladies" WHERE "nation"='west germany' AND "rank"=20 AND "figures"<74.85;