CREATE TABLE table_1924975_1 (q1 VARCHAR, q2_time VARCHAR, q1_time VARCHAR)

What is the q1+q2 time in which q1 is 1:18.574?
SELECT q1 + q2_time FROM table_1924975_1 WHERE q1_time = "1:18.574"
SELECT "q1" + "q2_time" FROM "table_1924975_1" WHERE "1:18.574" = "q1_time"