Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 15)
15.
The age of father 10 years ago was thrice the age of his son. Ten years hence, father's age will be twice that of his son. The ratio of their present ages is:
Answer: Option
Explanation:
Let the ages of father and son 10 years ago be 3x and x years respectively.
Then, (3x + 10) + 10 = 2[(x + 10) + 10]
3x + 20 = 2x + 40
x = 20.
Required ratio = (3x + 10) : (x + 10) = 70 : 30 = 7 : 3.
Discussion:
79 comments Page 8 of 8.
Priya said:
1 decade ago
In all these questions, we simply assuming son's age as x and father 's age as nx (n=number given).
And why in this question alone we are assuming son's age as x and father 's age as y.
Pleas say the difference.
And why in this question alone we are assuming son's age as x and father 's age as y.
Pleas say the difference.
Bhuban said:
1 decade ago
I need an answer to this question and way of solving.
The present age of the father is four times of his son. When will the son be as old as a father now their ages will be 99 find their present ages?
The present age of the father is four times of his son. When will the son be as old as a father now their ages will be 99 find their present ages?
Narayan said:
1 decade ago
Some time it good to solve question without any quick formula.
Thanks Mickey.
Thanks Mickey.
Brindha said:
1 decade ago
10 years ago,
Father age is = (3x - 10).
Son age = x.
10 years now.
Father age = 3x - 10 + 10 -------> (2).
Son age is 2 (x + 10) = 2x + 20 -------> (1).
1 = 2.
3x - 10 + 10 = 2x + 20.
x = 20.
Father age is = (3x - 10).
Son age = x.
10 years now.
Father age = 3x - 10 + 10 -------> (2).
Son age is 2 (x + 10) = 2x + 20 -------> (1).
1 = 2.
3x - 10 + 10 = 2x + 20.
x = 20.
Anu said:
1 decade ago
Can anybody tell me how to find the ratio?
Lavanya said:
1 decade ago
If father's present age is x and how we have to treat x + 3 or 3x in the question?
They mention like son age is 3 times than father age in 3 years hence.
They mention like son age is 3 times than father age in 3 years hence.
ANGELINE said:
10 years ago
My age 7 years from now is three times my age 15 years ago. What is my present age?
Rajesh said:
10 years ago
@Angeline
Your age is 26.
Your age is 26.
Jamzeer Narayan Mahato said:
10 years ago
Please solve this.
I am Jamzeer Narayan Mahato.
The present age of the father is four times the age of his son, when the son will be as old as his father now, the sum of their ages will be 99, find their present ages.
Thank in advance.
I am Jamzeer Narayan Mahato.
The present age of the father is four times the age of his son, when the son will be as old as his father now, the sum of their ages will be 99, find their present ages.
Thank in advance.
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