Aunt Zhang, Aunt Wang and Aunt Li are all taking their children to study in the city. Three families share a house with three bedrooms and one living room, as shown in the table below. Now the rent is

Aunt Zhang, Aunt Wang and Aunt Li are all taking their children to study in the city. Three families share a house with three bedrooms and one living room, as shown in the table below. Now the rent is a monthly rent. The total area is: 30+30+20+40= 120 (square meter).

Average rent per square meter:1200 ÷120 =10 (yuan),

Personal housing rent payable by Zhang and Wang: 30× 10=300 yuan,

The individual housing rent that Aunt Li's family should bear: 20× 10=200 yuan.

Public area rental fee: 1200-(300×2+200)=400 yuan,

Per capita rent: 400÷(3+3+2)=50 yuan,

Rent payable by Zhang and Wang: 50×3+300=450 yuan,

The rent that Aunt Li's family should bear: 50×2+200=350 yuan;

Answer: It is more reasonable to bear the rent according to the proportion of the shared area of each family, that is, Aunt Zhang's family should bear the rent in 450 yuan; Aunt Wang's family should bear the rent of 450 yuan; Aunt Li's family has to pay the rent, 300 yuan.