Q. After 5 years, fathers’ age will be three times the age of son. Five years earlier father’s age was 7 times the age of son at that time. What are the present ages of the father and the son?
A) 45 years, 9 years
B) 40 years, 10 years
C) 32 years, 8 years
D) 35 years, 7 years
✔ Correct Answer: 40 years, 10 years
Exam Insight
Let the present ages of the father and son be F and S. From the equations F + 5 = 3(S + 5) and F - 5 = 7(S - 5), solving gives F = 40 and S = 10. Thus, the father is 40 years old, and the son is 10 years old.