"The average monthly expenditure of a family was Rs 2200 during the first 3 month
Channel: Doubtnut
Date: 2020-04-05

"The average
 monthly expenditure of a family was Rs 2200 during the first 3 months; Rs
 2250 during the next 4 months and Rs 3120 during the last 5 months of a year.
 If the total savings during the year were Rs 1260, find the average monthly
 income of the family"