The age of the father is three times the age of the son. If the age of the son is 15 years old, then the age of the father is:
A. 50 years
B. 55 years
C. 40 years
D. 45 years
Answer:D
The age of the father is three times the age of the son. If the age of the son is 15 years old, then the age of the father is:
A. 50 years B. 55 years C. 40 years D. 45 years
Explanation: Let the age of the father is x