Question

The age of father is 4 time the age of his son. Five years ago father was 9 times as old as his son was at that time the age of son is?

Answer 1

Answer:

40

Step-by-step explanation:

Let Arvind's age = x

Let Arvind's father age = y

Thus, y=4x

and, y−5=7(x−5) or y=7x−30

Thus, 4x=7x−30

3x=30 or x=10

Hence, y = 40 years

Thus, age of Arvind's father is 40 years.