The average monthly expenditure of a family is 2,200 during first three months, 2,550 during next four months and 3,120 during last five months of the year. If the total savings during the year was 1,260, what is the average monthly income ?
Answer : Option C
Explanation : Total expenditure of the year
= Rs. (3 × 2200 + 4 × 2550 + 5 × 3120)
= Rs. (6600 + 10200 + 15600) = Rs. 32400
∴ Total income of the year
= Rs. (32400 + 1260) = Rs. 33660
∴ Average monthly income
Rs. Rs. 2805
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