Question

2. Father's age is four times
son's age. After five years father
age was five times of his son's
Find the present age of his son
(NET & HAZ., 2009
(a) 21 years "b) 20 years
(c) 22 years (d) 27 years​

Answer 1

Answer:

21 years is the right answer

Answer 2

20 years

Step-by-step explanation:

Let the age of son be x.

Thus, age of father is 4x.

After 5 years, their ages will be x+5 and 4x+5 years respectively.

As per the question, we have

4x+5=5(x+5)

4x+5=5x+25

x=20