CREATE TABLE table_name_48 (heat_rank NUMBER, lane VARCHAR2, time VARCHAR2)

Tell me the average heat rank with a lane of 2 and time less than 27.66
SELECT AVG(heat_rank) FROM table_name_48 WHERE lane = 2 AND time < 27.66
SELECT AVG("heat_rank") FROM "table_name_48" WHERE "lane" = 2 AND "time" < 27.66