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_67540 ( "Week" real, "Set 1" text, "Set 2" text, "Set 3" text, "Set 4" text, "Set 5" text, "Volume Lbs." real, "Peak Intensity(Last Set)" text, "% of 1 Rep Max(Last Set)" text )

### Question ###
How many lbs does a set 4 of 115lb x 8reps have?

### Accurate SQL ###

SELECT "Volume Lbs." FROM table_67540 WHERE "Set 4" = '115lb x 8reps'