Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1924975_1 ( q1 VARCHAR, q2_time VARCHAR, q1_time VARCHAR )

### Question ###
What is the q1+q2 time in which q1 is 1:18.574?

### Accurate SQL ###

SELECT q1 + q2_time FROM table_1924975_1 WHERE q1_time = "1:18.574"