Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 9)
9.
At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present ?
Answer: Option
Explanation:
Let the present ages of Arun and Deepak be 4x years and 3x years respectively. Then,
4x + 6 = 26 
4x = 20
x = 5.
Deepak's age = 3x = 15 years.
Discussion:
37 comments Page 3 of 4.
Naren arya said:
1 decade ago
After 6 years the age of Arun = 26.
Present age of Arun is 26-6 = 20.
=> 4/3 = 20/x.
=> x = 20*3/4.
=> x = 15.
Present age of Arun is 26-6 = 20.
=> 4/3 = 20/x.
=> x = 20*3/4.
=> x = 15.
Rashid Malik said:
10 years ago
Hello @Sohpia.
The derived answer is very clear. Just look following.
Arun age : Deepak age = 4:3.
Let age = x years.
Age of Arun = 4x years.
Age of Deepak = 3x years.
After 6 year Arun age = 4x years + 6 years = 26.
==> x = 5.
Hence age of Arun = 4x = 4*5 = 20 years.
Age of Deepak = 3x = 3*5 = 15 years.
The derived answer is very clear. Just look following.
Arun age : Deepak age = 4:3.
Let age = x years.
Age of Arun = 4x years.
Age of Deepak = 3x years.
After 6 year Arun age = 4x years + 6 years = 26.
==> x = 5.
Hence age of Arun = 4x = 4*5 = 20 years.
Age of Deepak = 3x = 3*5 = 15 years.
Divya said:
9 years ago
Arun age : 4x
Deepak age : 3x.
Then, after 6 yrs Arun age will be 26 : 4x + 6 = 26.
Then, 4x = 20.
x = 5.
Since we need to find Deepak age : 3x = 3 * 5 =15.
Deepak age : 3x.
Then, after 6 yrs Arun age will be 26 : 4x + 6 = 26.
Then, 4x = 20.
x = 5.
Since we need to find Deepak age : 3x = 3 * 5 =15.
Mitt said:
9 years ago
This is the simple one.
Present ratio of age is 4 : 3.
Then Aruns future age is 26 after 6 year.
Then 26 - 6 = 20.
Now 20 is from 4 * 5 Aruns present age.
Then Deepak's present age is 3 * 5 = 15.
Present ratio of age is 4 : 3.
Then Aruns future age is 26 after 6 year.
Then 26 - 6 = 20.
Now 20 is from 4 * 5 Aruns present age.
Then Deepak's present age is 3 * 5 = 15.
(4)
Msp said:
9 years ago
Arun's current age = 20.
Deepak's age = we don't know (x).
Therefore equation can be written with respect to current age as;
4x/3x = 20/x,
X = 60/4,
X = 15 years.
Deepak's age = we don't know (x).
Therefore equation can be written with respect to current age as;
4x/3x = 20/x,
X = 60/4,
X = 15 years.
(1)
Shiloh said:
9 years ago
Please give me the correct explanation for understanding the calculation of the answer.
Shiloh said:
9 years ago
Thank you for all the given explanation.
Deepika said:
8 years ago
There given that the present age of arun and Deepak are 4:3.
So first of all consider the aruns age as 4x and Deepak age is 3x.
And next there is given after 6 means then aruns age after 6 years means 4x+6.
And there is alredy given aruns age is 26 compare both ages i.e. 4x+6=26->4x=20->x=5.
Here we get x=5 then consider present age of Deepak age is 3x so substitute x value there the we get his age is 15 so answer is 15.
So first of all consider the aruns age as 4x and Deepak age is 3x.
And next there is given after 6 means then aruns age after 6 years means 4x+6.
And there is alredy given aruns age is 26 compare both ages i.e. 4x+6=26->4x=20->x=5.
Here we get x=5 then consider present age of Deepak age is 3x so substitute x value there the we get his age is 15 so answer is 15.
(1)
Kannika said:
7 years ago
Why not it is 11?
Because we calculated the x value using Arun's age after 6 years so when we got an answer as 15 we have to deduct that 6 years right.
Because we calculated the x value using Arun's age after 6 years so when we got an answer as 15 we have to deduct that 6 years right.
(1)
Atish said:
6 years ago
Consider son's age as 'x' and father's as 'y' so,
x + y = 60.
Then six years ago,
y-6 = 5(x-6).
y-6 = 5x-30.
y = 5x-24.
x+5x-24 = 60.
6x = 84.
x = 84/6 = 14.
So after 6 years 14 + 6 = 20 years old.
x + y = 60.
Then six years ago,
y-6 = 5(x-6).
y-6 = 5x-30.
y = 5x-24.
x+5x-24 = 60.
6x = 84.
x = 84/6 = 14.
So after 6 years 14 + 6 = 20 years old.
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