Question

at present my father's age is 7 times of my age after 10 years my father's age will be three times of my age let's calculate and write the present age of my father and

Answer 1

present age = x
father = 7x
After 10 years

your age = x + 10
father =( 7x + 10)
According to the condition
7x +10= 3(x+10)
7x+10=3x+30
7x-3x=30-10
4x =20
x = 20/4
= 5

Therefore

your age= 5 yrs
father's age = 7x
= 7x5
= 35 yrs

Answer 2

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.