Is daily wage = basic wage divided by 30 days reasonable

Is daily wage = basic wage divided by 30 days reasonable

Unreasonable. Referring to the relevant provisions of the labor contract law, the daily wage of the workers who implement the time wage system is calculated according to their monthly wage standard divided by the average legal working days of each month (21.6 days for those who implement the 40 hour working system and 23.33 days for those who implement the 44 hour working system)

According to the national regulations, the average working day is 21 days, and the daily wage of a worker in a unit is 35 yuan
According to the national regulations, the average monthly working day of an employee is 21 days, the daily wage of a worker in a certain unit is 35 yuan, and the overtime wage on rest days is twice of the original wage. If his actual paid wage in March is 1085 yuan, how many days did he work overtime in March?
To solve the equation of first degree with one variable

Assuming X days of overtime, then:
35×21+(35×2)X=1085
X=(1085-35×21)÷(35×2)
X=350÷70
X=5

According to the national regulations, the average monthly working day of an employee is 21 days, the daily wage of a worker is 75 yuan, and the overtime wage on rest days is three times of that on ordinary days
The actual salary of the worker in March is 2475 yuan. How many rest days did he work overtime in March

I'll answer according to your questions
(2475-75 * 21) / 75 / 3 = 4 rest days
In addition, I would like to say that the annual average day of employees stipulated by the state is 20.83/20.90 days, and the formula is (365 / 366-52 * 2-11) / 12
If the employee's working day is 21.75 days per month, the formula (365-104) / 12
In addition, the problem of overtime wage calculation: according to the provisions of the labor law, if workers are arranged to sing working hours, they should pay no less than 150% of their standard wage; if workers work on rest days and can not arrange compensatory leave, they should pay no less than 200% of their standard wage; if workers are arranged to work on legal holidays, they should pay no less than 300% of their standard wage

According to the state regulations, the average working day of an employee is 21 days a month. Xiao Zhang's daily salary is 65 yuan, and his overtime salary on rest days is twice the original salary,
If his actual salary in November is 1885 yuan, how many days will Xiao Zhang work?

Let's say that Xiao Zhang has an extra X-day shift this month
21×65+2×65x=1885
1365+130x=1885
130x=1885-1365
130x=520
x=4