Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 13)
13.
A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
Answer: Option
Explanation:
Let the mother's present age be x years.
| Then, the person's present age = |  |
2 | x |  |
years. |
| 5 |
 |
|
2 | x + 8 | |
= | 1 | (x + 8) |
| 5 | 2 |
2(2x + 40) = 5(x + 8)
x = 40.
Discussion:
59 comments Page 4 of 6.
Shivani said:
1 decade ago
In question they have asked present age of mother, But 40 is after 8 years old. Shouldn't it be 40-8-32?
Manoj said:
9 years ago
You are right @Kinyera.
If we take 3/2 the answer will be 10.
I think the question is incorrect.
If we take 3/2 the answer will be 10.
I think the question is incorrect.
Tshewang Chophel said:
5 years ago
They are asking the present age of the mother.
So, the answer could be 32 only.
So, the answer could be 32 only.
(7)
Jyothi chauhan said:
8 years ago
Hey guys.
Can I know how is that 5 (x+8) has written, Anyone please explain me?
Can I know how is that 5 (x+8) has written, Anyone please explain me?
(1)
Kinyera said:
10 years ago
Guys are saying that one-half means 1/2 then how will you express just "half"?
Prasanna said:
7 years ago
Question says one-half of the age, Not one and half.
So,It's 1/2 not 3/2.
So,It's 1/2 not 3/2.
(2)
Deepa said:
1 decade ago
Gr8 Yuga!
Can somebody explain the Actual calculation presented by them?
Can somebody explain the Actual calculation presented by them?
Subru said:
1 decade ago
x=mother's age
sons age=2/5*x
x=40(answer)
sons age=100
how this possible
sons age=2/5*x
x=40(answer)
sons age=100
how this possible
Nick Bayega said:
5 years ago
Let mother 's age be x.
2/5x + 8 = 1/2(x+8),
0.4x + 8 = 0.5(x+8),
X = 40.
2/5x + 8 = 1/2(x+8),
0.4x + 8 = 0.5(x+8),
X = 40.
(1)
Gaurav said:
7 years ago
40 is the age of mother after 8 years. So we must subtract 8 from it.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers