CREATE TABLE table_20730 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Ground" TEXT, "Crowd" FLOAT, "Date" TEXT, "Time" TEXT)

How many days was the away team's score 11.8 (74)?
SELECT COUNT("Date") FROM table_20730 WHERE "Away team score" = '11.8 (74)'
SELECT COUNT("Date") FROM "table_20730" WHERE "Away team score" = '11.8 (74)'