### 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-

A. Rs. 5425 B. Rs. 5446 C. Rs. 5500 D. Rs. 5600 Answer: Option A

### Solution(By Apex Team)

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

A. 20
B. 21
C. 28
D. 32

A. 18
B. 20
C. 24
D. 30

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years