The average salary of a person for the months of February, March, April and May is ₹12,000, and that fir the months March, April, May and June is ₹3,000. If his salary for the month of June is ₹8,000, then what is his salary for the month of February?

₹4,000 ₹5,500 ₹4,500 ₹5,000

₹4,000