Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 1)
1.
Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age?
Answer: Option
Explanation:
Let Ronit's present age be x years. Then, father's present age =(x + 3x) years = 4x years.
 |
(4x + 8) = | 5 | (x + 8) |
| 2 |
8x + 16 = 5x + 40
3x = 24
x = 8.
| Hence, required ratio = | (4x + 16) | = | 48 | = 2. |
| (x + 16) | 24 |
Discussion:
322 comments Page 12 of 33.
Sandhya said:
1 decade ago
Aafreen Rah:
Its 3x+x because "Father's age is 3 times (3x) more than (+) his son's age (x)". Here son's age is "x" so just add "x" age to 3times (3x).
Its 3x+x because "Father's age is 3 times (3x) more than (+) his son's age (x)". Here son's age is "x" so just add "x" age to 3times (3x).
Krishna said:
9 years ago
(4x+16)/(x+16)=(4(8)+16)/(8+16)) = 48/24 = 2years
We must submit the 'x' value in 'x' place.
X = 8
So, put 8 in x value.
Then you will get the answer.
We must submit the 'x' value in 'x' place.
X = 8
So, put 8 in x value.
Then you will get the answer.
Sunil said:
4 years ago
The right answer is 3.
At first it is;
1 : 4.
then;
2 : 5.
Here difference after 8 years is 1.
1 part = 8 years.
Again we increase 8 years;
3 : 6.
At first it is;
1 : 4.
then;
2 : 5.
Here difference after 8 years is 1.
1 part = 8 years.
Again we increase 8 years;
3 : 6.
(3)
Himank said:
1 decade ago
@Neeraj you are wrong.
If it is 3x time of the child age then it is 3x.
But it is mentioned 3x times more than the sons age then it is 4x.
(3x+x).
If it is 3x time of the child age then it is 3x.
But it is mentioned 3x times more than the sons age then it is 4x.
(3x+x).
Harsh Vardhan said:
9 years ago
I have seen many solutions above but can't figure out that how they took 8 + 8 in the further 8-year equation.
Can anyone help me by explaining it?
Can anyone help me by explaining it?
Sanju said:
8 years ago
It is 3 times of fathers age.
i.e 3son not 3+son coz it is given 3 times more not 3 years. So observe the question and final answer would 3 not 2.
i.e 3son not 3+son coz it is given 3 times more not 3 years. So observe the question and final answer would 3 not 2.
Prakash Chile said:
2 decades ago
Father is aged three times more than his son Ronit
if Ronit's age = x then Father's age = 3x
But Explanation Father's age = 4x
How is it possible?
if Ronit's age = x then Father's age = 3x
But Explanation Father's age = 4x
How is it possible?
Harsh said:
1 decade ago
As father age and his son age ratio decrease by one and half in 8 year.
In another 8 year in will decrease one and half from two and half times.
In another 8 year in will decrease one and half from two and half times.
Doll said:
1 decade ago
We can say that father age = y(ronits age).
So (4x+16)= y(x+16).
i.e (4x+16)/(x+16) = y.
Here we know x value.
So we can calculate y value.
So (4x+16)= y(x+16).
i.e (4x+16)/(x+16) = y.
Here we know x value.
So we can calculate y value.
Affrin said:
1 decade ago
(4x+8)=5/2(x+8) => 8x+16 = 5x+40
bcoz :
cross multiply : 2(4x+8) = 8x+16
straight multiply: 5(x+8) = 5x+40
Everyone clear.........
bcoz :
cross multiply : 2(4x+8) = 8x+16
straight multiply: 5(x+8) = 5x+40
Everyone clear.........
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