The correct option is A 54 years
Given that Bunty's age is 12 years.
Let the age of his mother be m years.
Given that his mother is 30 years older than him.
So, the required algebraic equation is
m = 12 + 30
m= 42
∴ Bunty's mother's age is 42 years.
Now,
Sum of the ages of Bunty and Bunty's mother
= 12 + 42
= 54 years