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 2 of 10.
Tridib adak said:
1 decade ago
Really helpful.
Nijin said:
1 decade ago
Thank you friends.
Gayu said:
1 decade ago
Thank you my friends.
Stella said:
1 decade ago
Friends, I have one doubt.
Father's present age-son's age=father's age at the time of son's birth.
38-x=x.
Here son's age & father's age at the time of son's birth both are assigned to x.
How is it possible? why we can't take two variables?
Father's present age-son's age=father's age at the time of son's birth.
38-x=x.
Here son's age & father's age at the time of son's birth both are assigned to x.
How is it possible? why we can't take two variables?
Vivek jain said:
1 decade ago
38-x=x means that
after substracting x(son's present age) from 38(father's current age),we will get the fathers age at the time of his son's birth and which was also x.
after substracting x(son's present age) from 38(father's current age),we will get the fathers age at the time of his son's birth and which was also x.
V.prasanthi said:
1 decade ago
Take three reverse number is descending order. Now reverse the result and add the reversed number with the original. You will get 1089 as the answer.
[A] 765 567+198;198+891+1089 [B] 129 921+891;891+198+1089
[C] 225 522+729;729+927+1089 [D] 139 931+991;991+199+1089
[A] 765 567+198;198+891+1089 [B] 129 921+891;891+198+1089
[C] 225 522+729;729+927+1089 [D] 139 931+991;991+199+1089
ANANDRAJ N said:
1 decade ago
Can we assign X to both father and sons age ie., (38 - x) = x ?
Vijay said:
1 decade ago
How did 2x come into picture?
Priya said:
1 decade ago
(38 - x) = x? How it came? Can't get that.
Vignesh said:
1 decade ago
@stella you are right.
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