The sume of the ages of a father and his son is 45 years.Five years ago,the product of their ages was 34 .The ages of the son and the father are respectively :	Select the correct option:
A) 6 and 39
B) 7 and 38
C) 9 and 36
D) 11 and 34
E) 12 and 74
Solution   Let the ages of father and son be x and (45 - x) years respectively.   Then,(x - 5)(45 - x - 5)=34 ⇔ (x - 5) (40 - x)=34 ⇔x2 - 45x + 234 = 0   ⇔ (x - 39)(x - 6)= 0 ⇔ x = 39 or x =6.   ∴ Father's age = 39 years and son's age =6 years. 6 and 39nswer 6 and 39
<result>A</result>
The sume of the ages of a father and his son is 45 years.Five years ago,the product of their ages was 34 .The ages of the son and the father are respectively :