Problem: the total age of a and b is 14 years more than the total age of b and c . c is how many year younger than a
Rationale: "explanation : given that a + b = 14 + b + c = > a ? c = 14 + b ? b = 14 = > c is younger than a by 14 years answer : option d"
annotated_formula: multiply(14, const_1)