The average expenditure of a man for the first five months of a year is Rs. 5000 and for the next seven months it is Rs. 5400. He saves Rs. 2300 during the year. His average monthly income is-

Answer: Option A

Total yearly income
= Rs. (5000 × 5 + 5400 × 7 + 2300)
= Rs. (25000 + 37800 + 2300)
= Rs. 65100
∴ Average monthly income
= Rs. $$\left(\frac{65100}{12}\right)$$
= Rs. 5425