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?
2 times
1 times
2
3 times
4
3 times
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:
325 comments Page 14 of 33.

KARTHICK said:   9 years ago
5/2 simply how we can get 2 * 1/2 it implies 2*1/2=(4+1)1/2=>5/2.

The proper fraction will be used into the mixed fraction format.

Ashu said:   2 decades ago
Although, I got the solution but cann't we add 16 in the second step, as the fater age is increased by 16 I. E 8 and further 8 years.

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)?

Nayana said:   2 decades 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?

Rajana prasad said:   1 year 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.
(8)

Rahul said:   9 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:   6 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.

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:   1 decade 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?


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