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?
Correct Answer: 80
Explanation:
Let the worker remains absent for x days.
Then, his working days = (120 - x) days.
According to the question,
20 x Working day - 3 x Absent day = 560
20(120 - x) - 3x = 560
⇒ 2400 - 20x - 3x = 560
⇒ x = 2400 - 560/23 = 1840/23
= 80 days
