Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 3)
3.
A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 38 years now, the son's age five years back was:
Answer: Option
Explanation:
Let the son's present age be x years. Then, (38 - x) = x
2x = 38.
x = 19.
Son's age 5 years back (19 - 5) = 14 years.
Discussion:
99 comments Page 10 of 10.
Mahesh mote said:
5 years ago
Nice Thanks @Shriram.
(2)
Prashanth said:
4 years ago
Let present age of son = x.
The present age of the father = 38.
Age of father at the time of his son birth = 38-x.
Father age at the time of his son birth = present age of the son,
38 - x = x,
x = 19
19 - 5 = 14.
How can his son be born at the age of 14? Please anyone explain.
The present age of the father = 38.
Age of father at the time of his son birth = 38-x.
Father age at the time of his son birth = present age of the son,
38 - x = x,
x = 19
19 - 5 = 14.
How can his son be born at the age of 14? Please anyone explain.
(15)
Subas said:
4 years ago
Since "I was as old as you are at the present at the time of your birth= father is twice the son's age". So Son's age is x fathers age is 2x.
2x = 38.
x = 19,
Five years ago = 19-5 = 14 Years.
2x = 38.
x = 19,
Five years ago = 19-5 = 14 Years.
(6)
Imon said:
4 years ago
As we know,
Let 'x' be the present age of the son,
Past:
Son's Age = 0 (just born)
Father's Age = x(present age of son)
Present:
So, after 'x' no. of years, we can say;
x+x = 2x = 38,
x=19.
Answer Required = Five years ago = 19-5=14 years.
Let 'x' be the present age of the son,
Past:
Son's Age = 0 (just born)
Father's Age = x(present age of son)
Present:
So, after 'x' no. of years, we can say;
x+x = 2x = 38,
x=19.
Answer Required = Five years ago = 19-5=14 years.
(30)
Ahanya said:
4 years ago
Present age of son is not mentioned, the difference between the father and son' age is also not mentioned then how can we take 2x.
2x means if sons age is 6 then fathers has double the age of son but in this, it is not mentioned all these things then how can we take like this? Anyone, please explain me.
2x means if sons age is 6 then fathers has double the age of son but in this, it is not mentioned all these things then how can we take like this? Anyone, please explain me.
(33)
Chandra hero said:
3 years ago
F --------- S
1p ---------0p
2p ---------1p
38 ---------19
19 - 5 = 14.
1p ---------0p
2p ---------1p
38 ---------19
19 - 5 = 14.
(16)
Swapnil A. V. said:
3 years ago
The present age of the son = x.
They said the Present age of the son = the Father's age at the time of the son's birthday.
i.e. 38 - x = x.
we get x = 19
a/c to condition,
x- 5= 19-5 = 14 (Answer)
They said the Present age of the son = the Father's age at the time of the son's birthday.
i.e. 38 - x = x.
we get x = 19
a/c to condition,
x- 5= 19-5 = 14 (Answer)
(20)
Mr. Jigglynuts said:
3 years ago
@All.
Here is a simple way to understand this:
f = 38 (f for father's age),
x = son's age today.
x = number of years passed since the son was born until today (same thing in different words)
x = the age of the father when the son was born.
The age of the father when the son was born + the number of years passed since the son was born = the father's age.
x + x = 38.
2x = 38,
x = 19.
Here is a simple way to understand this:
f = 38 (f for father's age),
x = son's age today.
x = number of years passed since the son was born until today (same thing in different words)
x = the age of the father when the son was born.
The age of the father when the son was born + the number of years passed since the son was born = the father's age.
x + x = 38.
2x = 38,
x = 19.
(154)
Soni said:
2 years ago
Father's age = 38.
Now,
19+19=38.
Subtract 19 from 38,
38-19 = 19.
Than son age is 19.
and they ask about five years ago age so,
19 - 5 =14
Thankyou.
Now,
19+19=38.
Subtract 19 from 38,
38-19 = 19.
Than son age is 19.
and they ask about five years ago age so,
19 - 5 =14
Thankyou.
(55)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers