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 16 of 32.
Jaee said:
1 decade ago
In last step why the equations are divided? Why ratio is taken?
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).
Umesh Jangale said:
1 decade ago
Hello @Sundar,
Please tell me how did you take [(4x + 16)/(x + 16))]this ratio.
(4x + 16)/(x + 16).
Please tell me how did you take [(4x + 16)/(x + 16))]this ratio.
(4x + 16)/(x + 16).
Saresh said:
1 decade ago
All are wrong answer.
Current answer is 2 1/5 time.
That is father first age is 72 answer his son age is 24 (3:1).
After 8 years father age is 80 and son age is 32 (1: 2. 5).
After 8 years father age is 88 and son age will be 40 (1: 1. 2).
So all option are incorrect.
Current answer is 2 1/5 time.
That is father first age is 72 answer his son age is 24 (3:1).
After 8 years father age is 80 and son age is 32 (1: 2. 5).
After 8 years father age is 88 and son age will be 40 (1: 1. 2).
So all option are incorrect.
Rash said:
1 decade ago
Suppose age of Rohit is x so, age of father is 3x.
Now, (3x+8)/(x+8) = 2.5/1.
We get x = 24.
So age of father = 3*24 = 72.
So that after 8 the ratio became 2.5:1.
Further after 8 years. The ratio is 88/40 = 2.2.
But I don't get the answer 2.
Now, (3x+8)/(x+8) = 2.5/1.
We get x = 24.
So age of father = 3*24 = 72.
So that after 8 the ratio became 2.5:1.
Further after 8 years. The ratio is 88/40 = 2.2.
But I don't get the answer 2.
Anan boro said:
1 decade ago
I have no doubt after all yours discussion to simple answer, thanks all of you.
Priyanka said:
1 decade ago
How is come x+16?
Alok said:
1 decade ago
Is there any other method to solve this question?
Aadi said:
1 decade ago
Really nice explanation! good work. :)
Manjunatha said:
10 years ago
Till some candidates are getting doubt, guys be revise from 1st answer, definitely you will get the ability to solve yourself in future.
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