A is 3 years older than C. B and D are twins. How older is c than D?
A is 3 years older than C. B and D are twins. How older is c than D? Correct Answer 6 years
Given:A = B + 3 = C - 3B = D (they are twins)⇒ B + 3 = C - 3⇒ D + 3 = C - 3 ⇒ C = D + 6Therefore, C is 6 years older than D.