The drivers of 1 and 12 vehicles are assumed to be 12 people, with code names (A 1, A2, A3...A 12).

2. Let the unknown X represent the total monthly withdrawal.

Let the unknown y represent the cost of dinner.

4. Let the unknown Z represent the total amount of money left after the monthly dinner.

5. Let unknown J represent the base of money.

6. Set the unknown W as the total number of working days for all drivers.

The calculation formula came out:

Total withdrawal amount in the current month =60*X=60X.

The remaining payment amount in the current month except dinner expenses =60X-Y=Z

Allocable radix =Z/W=J

Then calculate the income according to the monthly statistics of the number of times the driver goes to work, such as A 1 driver goes to work for 24 days, that is, 24*J=?

The core idea is that everyone has the same income per class, and the difference is reflected in the number of working days.