A porcelain factory has 120 workers, and each worker can make 200 teacups or 50 teapots a day. If 8 teacups and a teapot are a set, how to arrange them?
Let x people produce teacups and 120-x people produce teapots.
200x:50( 120-x)=8: 1
400( 120-x)= 200 times.
2( 120-x)=x
240-2x=x
3x=240
x=80
120-80=40 people
Answer: 80 people produce teacups and 40 people produce teapots.