CREATE TABLE table_23018775_3 (avg_speed VARCHAR, total_time VARCHAR)

What was the average speed where the total time was 1:30.4842?
SELECT avg_speed FROM table_23018775_3 WHERE total_time = "1:30.4842"
SELECT "avg_speed" FROM "table_23018775_3" WHERE "1:30.4842" = "total_time"