CREATE TABLE table_1924975_1 (pos VARCHAR2, q1 VARCHAR2, q2_time VARCHAR2)

when the q1+q2 time was 2.34.736, what was the total pos number?
SELECT COUNT(pos) FROM table_1924975_1 WHERE q1 + q2_time = "2.34.736"
SELECT COUNT("pos") FROM "table_1924975_1" WHERE "2.34.736" = "q1" + "q2_time"