Now we are in the year 2004. The ratio of ages of my father, my
mother, and my younger brother is 12:9:1. Five years from now, my father
will be 41 years old. In what year was my younger brother born?

Solution :

let my fathers age (in years) = x

my mothers age (in years ) = y

and my younger brothers age (in years ) = z

according to question,

x:y:z =12:9:1

** x /z = 12/1 .......................(Ist)**

After 5 Years,

my fathers age = x+5 =41

or x=41 -5 =36

** hence my fathers Present age = 36 years**

From Equation Ist ,

x/z =12 /1

or z= 36/12

or **z = 3**

Hence My Younger Brother is 3 years Old in 2004 , hence was born in 2001

Hope u Understood the Solution !!!

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