### The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother ?

A. 40 years B. 42 years C. 48 years D. 50 years Answer: Option B

### Solution(By Apex Team)

$\begin{array}{l}\text{Age of the mother}\\ \text{= (12 × 7) – (7 × 6) years}\\ \text{= 42 years}\end{array}$

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