Question

At present, my father's age is 7 times of my age. After 10 years my father's age will be 3 times of my age. Let's calculate and write the present age of my father and me.​

Answer 1

Answer:

Let my present age be x.

Then my father’s present age is 7x.

After 10 years,

• My age will be (x+10).

• And my father’s age will be (7x+10).

According to the given criteria,

7x + 10 = 3(x + 10)

⇒ 7x + 10 = 3x + 30

⇒ 7x - 3x = 30 - 10

⇒ 4x = 20

• ⇒ x = 5.

So, my present age is 5 years old.

And my father’s present age is 7x = 7 × 5 = 35 years old.