The average expenditure of a family was ₹5,750 for the first 3 months, ₹5,150 for the next 3 months and ₹7,750 for the next 3 months. Find the approximate average income of the family for the 9 months if the family saves₹ 750 per month.
1
₹6,796
2
₹6,967
3
₹6,968
4
₹6,979