how many singles from dosage appeared on the modern rock tracks charts ?
CREATE TABLE table_202_240 (
    id number,
    "year" number,
    "single" text,
    "chart" text,
    "position" number
)
SELECT COUNT("single") FROM table_202_240 WHERE "chart" = 'modern rock tracks'
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: how many singles from dosage appeared on the modern rock tracks charts ? ### Input: CREATE TABLE table_202_240 (
    id number,
    "year" number,
    "single" text,
    "chart" text,
    "position" number
) ### Response: SELECT COUNT("single") FROM table_202_240 WHERE "chart" = 'modern rock tracks'