CREATE TABLE table_57749 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

How many people were in the Crowd when the Away team scored 15.20 (110)?
SELECT COUNT("Crowd") FROM table_57749 WHERE "Away team score" = '15.20 (110)'
SELECT COUNT("Crowd") FROM "table_57749" WHERE "Away team score" = '15.20 (110)'