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 14 of 32.
Aafreen Rah said:
1 decade ago
How it is 4x?
Father's age is three times more than his son's age means. We can say (3x+x) or (3x+2x)...
Why we take it as (x+3x)?
Father's age is three times more than his son's age means. We can say (3x+x) or (3x+2x)...
Why we take it as (x+3x)?
Nayana said:
1 decade ago
Hi vaishu,
I didn't get the last step why did you add 8 to that equation 4x+8 and x+8. Can you please explain me that last step?
I didn't get the last step why did you add 8 to that equation 4x+8 and x+8. Can you please explain me that last step?
Rajana prasad said:
10 months ago
Present age ratio F:S = 1:4
After 8 years(2.5:1) = 5:2.
1p = 8 years
5p = 40 years 2p =16.
Another 8 years later. 48:24 = 2:1.
After 8 years(2.5:1) = 5:2.
1p = 8 years
5p = 40 years 2p =16.
Another 8 years later. 48:24 = 2:1.
(5)
Rahul said:
8 years ago
Hi guys, how the problem is well segregate? Means where I place the proper place of future age. and present age? Please tell me.
Shubham Londhe said:
5 years ago
It's only said his age would be 2.5 times of son's age after 8 years.
So only 2.5 * X seems logical. Why 2.5(X+8)? Explain it.
So only 2.5 * X seems logical. Why 2.5(X+8)? Explain it.
Shraddha said:
1 decade ago
As in question, fathers age is three times more than son's age. If we take sons age as x than father's age wll 3x how that 4x?
Chinmay said:
1 decade ago
Hey we got the x value is 8. So just put the value of 8 in place of x and find out the ratio, you definitely get the answer.
Aishu said:
10 years ago
Ten years ago Ram was thrice as old as Sham was but 10 years hence; he will be only twice as old. What is Ram's present age?
Pari said:
1 decade ago
Ohhh got it ...we are to put d value of x i.e 8 in d equation...:)
= (4x+16)/(x+16)
= (4x8+16)/(8x16)
= 48/24
= 2 times
:)
= (4x+16)/(x+16)
= (4x8+16)/(8x16)
= 48/24
= 2 times
:)
Vishal Singh said:
10 years ago
How is it (4x + 8) = 5/2(x +8)?
It should be multiplied in 5/2(4x +8). Because he is the age of father.
Any body explain?
It should be multiplied in 5/2(4x +8). Because he is the age of father.
Any body explain?
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