Question

i am 3 times as old as my son 15 years later i shall be two times as old as my son how old am i and how old is my son​

Answer 1

Answer:

i think i don't know the answer

Answer 2

Step-by-step explanation:

10th

Maths

Pair of Linear Equations in Two Variables

Algebraic Solution of a Pair of Linear Equations

I am three times as old as ...

MATHS

I am three times as old as my son. Five years later, I shall be two and a half times as old as my son. How old am I and how old is my son?

November 22, 2019

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Kiran Bhatia

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ANSWER

Suppose my age is x years and my son's age is y years. Then,

x=3y ..(i)

Five years later, my age will be (x+5) years and my son's age will be (y+5) years.

∴x+5=(2+

2

1

)(y+5) [Given]

⇒2x−5y−15=0 .....(ii)

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

6y−5y−15=0⇒y=15

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

x=45

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

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