Aptitude - Problems on Ages - Discussion

Ayesha's mother was 36 years old when her brother four years younger to her means when Ayesha born her mother's age 36 - 4 = 32 years.

And when she born her father's age 38.
So, 38 - 32 = 6 years.

Fathers age - Mothers age -----> 38-36 = 2,
brothers age ---> (x-4),
so,
(x-4)=2,
x = 6.

When Ayesha born father age is 38.

After 4 year born son then mom age is 36.
So after 4 years (38+4) =42.
Then the difference in present age 42-36=6.

Take Ayesha age at a time to find the difference.

Ayesha age=0 then father age=38.
Ayesha's brother, who is younger than him by 4 years.
When Ayesha'brother born his mother age =36 that time Ayesha age is 4 year.
So back to four years that time Ayesha age is 0 and his mother age is 32.
Now, find the difference of father and mother age because of now Ayesha age become=0.
To find differene of age either Ayesha age for his brother age must be =0<<<<<.

Ayesha's age = 0
Father's age = 38
Mother's age = 36

Ayesha is 4 years
4 years after =0
Mother's age =32.

Ayesha's age = 0,
Father's age = 38.
Mother's age = I have no clue from the info.

Now they say bro is 4 years younger to Aisha meaning, she ages by 4 years so will her dad and her mom will age by 4 years from the time she was born.

Ayesha brother is 0 years.
Ayesha = 4 years
Ayesha father = 38+4 = 42
Ayehsa mother = 36 (Given when a bro is born her age is mentioned )

So by the mother age, now we can re-trace her age 4 years back = 32 years.

So a difference of father and mother = 6 years ( 42-36).

S=x,D=x+4,
F=x+4+38=42,
M=x+36,
F-M=x+42-x-36 = 6years.

According to me, the solution is;

Ayesha born father age 38 years means ration is 1x:38x assume.

Why you minus 4 again in this value.

Again skip to this part.,
Her brother is 4 years younger than her
So here, Ayesha and brother ratio is assumed.
4x:1x.
No need to work on brother age.

According to the question, it's self says at a time if Ayesha born her father age is 38 years and mother's age is 36years and her brother 4 years younger than her.

So parents diff is 38 - 36 = 2 years.

Such a simple and great explanation @Pallavi.

Thank you so much.

Let Ayesha be A, father age be F.
Her Father will be F = 38-A.
And Ayesha s brother, 4 yr younger than Ayesha be A-4.

Her mother = 36-(A-4).
Parents difference = 38-A-(36-A-4).
= 38-A-36+A+4,
=42-36,
= 6yr.