Question

♦Example Question♦
I am three times as old as my son. Five years layer, I shall be two and half times as old as my son. How old am I and how old is my son?
Please give me correct answer.​

Answer 1

Step-by-step explanation:

Son's Present Age=X

Father's """" =3X

Five years later Son's age =X+5

Five years hence Fathers Age= 2.5(X+5) (given)

Also five years hence,father's age=3X+5

Compare,

2.5(X+5)=3X+5

2.5X+12.5=3X+5

12.5-5=3X-2.5X

7.5/0.5=X

15 years=X

Father's age=3X=3×15=45years

Answer 2

Answer:

Your present age is 45 years and your son's is 15 years.

Step-by-step explanation:

Suppose that your age is x years and your son's age is y years.

=> x = 3y __________(1)

Five years later,

your age will be (x + 5) years and your son's age will be (y + 5) years.

.°. x + 5 = 5/2 (y + 5) [Given]

=> 2x - 5y - 15 = 0 ________(2)

Putting x = 3y in equation (2), we get

6y - 5y - 15 = 0

=> y - 15

.°. y = 15

Putting y = 15 in equation (1), we get

x = 45

Hence, your present age is 45 years and your son's is 15 years.