Name the total number of total when round 1 +2A points of 19.620
CREATE TABLE table_name_48 (
    total VARCHAR,
    round_1_ VARCHAR,
    _2a_points VARCHAR
)
SELECT COUNT(total) FROM table_name_48 WHERE round_1_ + _2a_points = "19.620"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the total number of total when round 1 +2A points of 19.620 ### Input: CREATE TABLE table_name_48 (
    total VARCHAR,
    round_1_ VARCHAR,
    _2a_points VARCHAR
) ### Response: SELECT COUNT(total) FROM table_name_48 WHERE round_1_ + _2a_points = "19.620"