Question

A father is 25 years older then his son. Ten years ago father’s age was 6 times of his son’s age. What is the present age of son?

• A. 10
• B. 15
• C. 30
• D. 40

Answer 1

Answer:

B. 15

let the present age of son be ' x ' and age of his father be ' y' y = x + 25 10 years ago , age of father = y - 10 and age of his son be = x - 10 ( y - 10 ) = 6 (x - 10 ) x + 25 - 10 = 6x - 60 x + 15 = 6x - 60 5x = 75 x = 15 yr