What's the highest Average that has a 1987-88 of 55 and a Played that's larger than 114?
CREATE TABLE "relegation" (
  "team" text,
  "average" real,
  "points" real,
  "played" real,
  "1986_87" text,
  "1987_88" text,
  "1988_89" real
);
SELECT MAX("average") FROM "relegation" WHERE "1987_88"='55' AND "played">114;