Correct Answer - Option 4 : 12
Given:
Total age of A and B = 12 + (Total age of B and C)
Calculation:
According to the question
Age of (A + B) = 12 + Age of (B + C)
⇒ Age of A + Age of B = 12 + Age of B + Age of C
⇒ Age of A = 12 + Age of C
∴ C is 12 years younger than A.