Job Recruitment Website - Job information - A factory wants to recruit 150 workers in ab, and the monthly wages of workers in A and B are 600 yuan and 1000 yuan respectively.

A factory wants to recruit 150 workers in ab, and the monthly wages of workers in A and B are 600 yuan and 1000 yuan respectively.

Monthly salary Y=600a+ 1000b.

a+b= 150……①

b & gt=2a……②

2a+a+b comes from ①+② < = 150+b, that is, A.

① The formula can be changed to b = 150-a...③.

Substitute formula ③ into Y=600a+ 1000b:

y = 600 a+ 1000( 150 a)= 150000-400 a

So when a=50, the minimum value of y is 130000.