Raj is going to school. When he is not in school, you will find him working in his farm. Can you consider him as a worker? Why?

It is not mentioned in the question that in return to working on a farm. Raj is getting something or not. Thus, it is difficult to consider him as a worker but working in a farm comes under the casual work and the work is contributing towards the domestic product of a country as well as it Is an economic activity. Thus, we can say that Raj is a worker.