Question

I am three times as old as my son . 5 years later i shall be 2 1/2 times as old as my son how old am i and how old is my son\

Answer 1

Answer:

let my son age be x years

then my age be y years

ATQ

y=3x

after five years my son age be (x+5) years

after five years my age be (y+5) years

ATQ

y+5=5/2(x+5)

3x+5 =5/2(x+5) (y=3x)

2(3x+5)=5(x+5)

6x+10=5x+25

6x- 5x =25-10

x=15

y=3x

y=3×15

y=45