Work / Planning to move to Poland - Need Idea about expenses/salary [19]

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Expenses in Poland for a family

Hello, I am from India, got an offer in Warsaw, Poland and the net salary is 15000 PLN per month. Is it a good salary to run a 3 member family(Myself, wife and my 3 months baby)?Can I make savings? What would be the usual expenses per month especially for the Indian family?

Does my wife have options to work in Poland? She is a general practitioner.