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:
319 comments Page 28 of 32.
Sanju said:
7 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.
Suraj said:
7 years ago
@Sanju.
They've stated that Father's age is 3 times more than son's age.
Not 3 times of fathers age.
then;
If son's age is 'x' then according to the statement "3 TIMES MORE THAN SON'S AGE" Means 3x+x.
Thus, 3x+x=4x.
They've stated that Father's age is 3 times more than son's age.
Not 3 times of fathers age.
then;
If son's age is 'x' then according to the statement "3 TIMES MORE THAN SON'S AGE" Means 3x+x.
Thus, 3x+x=4x.
Sonam Nishad said:
7 years ago
I have a doubt if I'm trying to resolve this question by a short trick like:- if I assumed if son's age is 1 than father age should be 3times of his son
F ---- S.
3 ---- 1 then after 8 yrs it will be 5/2 it's mean
5 ---- 2.
Let's take the difference that is 2 &3, now to make equality in both our new ratio would be
9 F ---- 3S
10 F 4S, let's take the diff = 1.
1 = 8 ratio, now if I multiply in present ratio it's should be 72 and 24, that's mean F is 3 times of his son, but in your answer 2. Pls explain me.
F ---- S.
3 ---- 1 then after 8 yrs it will be 5/2 it's mean
5 ---- 2.
Let's take the difference that is 2 &3, now to make equality in both our new ratio would be
9 F ---- 3S
10 F 4S, let's take the diff = 1.
1 = 8 ratio, now if I multiply in present ratio it's should be 72 and 24, that's mean F is 3 times of his son, but in your answer 2. Pls explain me.
Javed patel said:
7 years ago
@Sonam.
3 is the correct answer.
3 is the correct answer.
John said:
7 years ago
How come 4x+16/x+16 = 48/24? Anyone explain me.
Prashant said:
7 years ago
How this ratio came into picture 4x+8?
Rohan said:
7 years ago
Can't we take 2.5 instead of 5/2?
Suhail said:
7 years ago
How comes 5/2? please explain.
Sharad said:
7 years ago
How last step 4x+16/x+16?
Saiganesh murarishetty said:
7 years ago
For every 8 years father's age decrease by halftime of his son's age so after further 8 years (5/2) - (1/2) =2 times.
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