Mr. Sahni employed a worker for a certain work to be done in some days. He pays 20 to the worker for each working day and the payment is reduced by 3 for each non-working day of the worker. For how many days the worker does remain absent from work if at the end of 120 days, he gets 560 as total remuneration ?

• A. 80
• B. 60
• C. 70
• D. 40