Question

A father is now three times old as his son. Five years back he was four times as old as his son. The age of the son in years is

• A. 23
• B. 15
• C. 18
• D. 20

Answer 1

Answer:

B. 15

Let sons age be x year and fathers age 3x year five years ago, father's age = (3x - 5) year son's age = x - 5year (3x - 5) = 4(x - 5) 3x - 5 = 4x - 20 x = 15