Total average with less than 105 points, 1993-1994 less than 30, and the team of gimnasia y tiro?
CREATE TABLE "relegation" (
  "team" text,
  "average" real,
  "points" real,
  "played" real,
  "1991_92" text,
  "1992_93" text,
  "1993_94" real
);
SELECT SUM("average") FROM "relegation" WHERE "points"<105 AND "team"='gimnasia y tiro' AND "1993_94"<30;