Aptitude - Problems on Ages - Discussion

Reading which part of the question I should go for making this equation 38-x = x.

Explain this 38 - x = x.

Can you solve the problem accurately when the father's age is an odd number?

At present:
Age of son = x.
Age of father = 38.

At birth time of son:
Age of son = 0
Age of father = x.

As father grew son will also grow.
x - 0 = 38 - x

Think like person started at the same time and same speed but from the different location. Distance travelled by both will be same.

How 38 - x = x? Pease explain me.

Let the son's present age be x years.

Then, (38 - x) = x -> Why 'x' is subtracted from 38?

2x = 38 -> how 2x = 38 its not mentioned in the question?

Father said "I was as old as you are at the present at the time of your birth" means that;

When son born that time age of the father is equal to the present age of his son.

The present age of his son = x.
Then father age = 2x at the current time.

So, x = 38/2 = 19.

Before 5 years = 19 - 5 = 14.

14 is the answer.

38-x age of father at born time.

It means father's age at the time of his son's birth is equal to son's age at present.

If we take sons age at present as "x" father's age at his son's birth is also "x".

So, 2x = 38.

x = 19.

1. If at the time of father's age @15 years, his son was born, at that time son age is @1 year.

If father come into age @30 years, his son age is @15 years.

2. If at the time of father's age @20 years, his son was born, at that time son age is @1 year.

If father come into age @40 years, his son age is @20 years.

3. If at the time of father's age @19 years, his son was born, at that time son age is @1 year.

If father come into age @38 years, his son age is @19 years.

Finally that 19 years is present age of son.

But they are asking 5 years ago so, 19 years - 5 years = 14 years.