Question

Construct a linear equation from
the following real life situations:

(i) The present age of father is 3 times the age of his son. After 20 years , the age of father will become 2

times the age of his son.​

Answer 1

Answer:

Let the son present age is x years, then the age of father is 3x years.

from the given conditions,

After 20 years, father age 2(x+20)

also after 12 years, father age is (3x+20)

Hence,2(x+20)=(3x+20)

⇒2x−3x=40−24

⇒x=16

Father age is 16×3=48

Hence, son present age is 20 and father present age is 48.