Answer:
Class A :

Class B :

Explanation:
Class A :
Let the amount of Salt in the solution be represented by y as, it is supposed to be the independent variable.
Similarly let the amount of Water in the solution be x
As we are given that for Class A , The ratio of salt content to water content is 3 to 5
Hence

Multiplying both sides by x we get

Class B :
Let the amount of Salt in the solution be represented by y as, it is supposed to be the independent variable.
Similarly let the amount of Water in the solution be x
As we are given that for Class A , The ratio of salt content to water content is 2 to 4
Hence

multiplying both sides by x we get
