This is a proportional distribution. This course has been offered in the current nine-year compulsory education. Let's put it in mathematics, the relationship between score and proportion.

For example:

Two crops, soybeans and peanuts, are planted on a 40-hectare land. The planting area ratio of soybean and peanut is 2: 3. How many hectares are these two crops planted? (Three ways to answer)

1, let soybean x and peanut y.

3x=2y x+y=40

De: x= 16 y=24。

2、40/(2+3)=8

So soybean =8*2= 16 peanut =8*3=24.

3. set soybean X.

So: peanuts =3/2*x

X+3/2*x=40 x= 16, so peanut 24.