This is a subjective question, hence you have to write your answer in the Ted-Field given below.

A gas mixture contains three components. I.e., argon, component B and component C. The analysis of the mixture shows: 40 mo angon 18.75 mass% B and 20 mol% C. Molecular weight of argon and component C is 40 and 50, respectively Obtain the molecular weight of component B and average molecular weight of the mixture.