### The average expenditure of a man for the first five months is Rs. 1200 and for the next seven months is Rs. 1300. If he saves Rs. 2900 in that year, his monthly average income is-

A. Rs. 1500 B. Rs. 1600 C. Rs. 1700 D. Rs. 1400 Answer: Option A

### Solution(By Apex Team)

Average expenditure of a man for the first five month = Rs. 1200 Average expenditure of a man for the next seven month = Rs. 1300 Total annual expenditure of man = Rs. (5 × 1200 + 7 × 1300) = Rs. (6000 + 9100) = Rs. 15100 Man saves = Rs. 2900 His total annual income = Rs. (15100 + 2900) = Rs. 18000 ∴ Average monthly income $\begin{array}{l} =\Large\frac{18000}{12} \\ =\text { Rs. } 1500 \end{array}$

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