CREATE TABLE table_7224 ("Position" FLOAT, "Team" TEXT, "Points" FLOAT, "Played" FLOAT, "Drawn" FLOAT, "Lost" FLOAT, "Against" FLOAT, "Difference" TEXT)

What is the Drawn has an Against smaller than 20 and Points of 15?
SELECT "Drawn" FROM table_7224 WHERE "Against" < '20' AND "Points" = '15'
SELECT "Drawn" FROM "table_7224" WHERE "Against" < '20' AND "Points" = '15'