150 red steamed bread 100 white steamed bread Everyone gets the same amount of red and white steamed bread. Finally, 40 red steamed buns can't be evenly distributed. How many people are there?

150-40 =110 (unit)

The greatest common factor of 1 10 and 100 is 10.

So a * * * has 10 people, and each person takes 1 1 red steamed bread and1white steamed bread.