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_48305 ( "Rank" real, "Company" text, "Headquarters" text, "Industry" text, "Sales (billion $)" real, "Profits (billion $)" real, "Assets (billion $)" real, "Market Value (billion $)" real )

### Question ###
What is the average assets in billions of the company Bank of America, which has less than 49.01 billions in sales?

### Accurate SQL ###

SELECT AVG("Assets (billion $)") FROM table_48305 WHERE "Company" = 'bank of america' AND "Sales (billion $)" < '49.01'