The sum of the ages of a son and father is 52 years. After four years, the age of the father will be four times that of the son. What is the present age ( in years) of the son?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 8.
Let the ages of a son and father be S and F
According to the question
⇒ S + F = 52 ......(1)
After four years
⇒ (F + 4) = 4 (S + 4)
⇒ F - 4S = 16 - 4
⇒ F - 4S = 12 ........(2)
Equation (1) - Equation (2)
⇒ 5S = 52 - 12 = 40
⇒ S = 40/5
⇒ S = 8 years
Hence, the age of the son is 8 years