Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 7)
7.
Six years ago, the ratio of the ages of Kunal and Sagar was 6 : 5. Four years hence, the ratio of their ages will be 11 : 10. What is Sagar's age at present?
Answer: Option
Explanation:
Let the ages of Kunal and Sagar 6 years ago be 6x and 5x years respectively.
| Then, | (6x + 6) + 4 | = | 11 |
| (5x + 6) + 4 | 10 |
10(6x + 10) = 11(5x + 10)
5x = 10
x = 2.
Sagar's present age = (5x + 6) = 16 years.
Discussion:
128 comments Page 12 of 13.
Viji said:
1 decade ago
Thank you Faruk and Neha. Nice explanation.
Siri said:
1 decade ago
Thank you Faruk very well explained.
Machendra said:
1 decade ago
Clearly giventhat, 6 years ago the ratios of ages of kunal and sagar was 6:5, so we have to add 6.
Bharathi said:
1 decade ago
The present age of sagar is 8 years. We have to reduce six years.
Justadream said:
1 decade ago
Sagar's present age = (5x + 6) = 16 years.
how is that why it is not 20
as he wants the present not past anyone tell me please
how is that why it is not 20
as he wants the present not past anyone tell me please
Neha said:
1 decade ago
Six years ago the ratio was 6:5.
So, their ages were 6x and 5x six years before.
Now to know their present ages we will add 6 and therefore their present ages are (6x+6) and (5x+6).
A/Q After 4 years, the new ratio will be 11:10.
So, we will add 4 to their present ages i.e. (6x+6) and (5x+6).
We get (6x+6+4) and (5x+6+4).
So, their ages were 6x and 5x six years before.
Now to know their present ages we will add 6 and therefore their present ages are (6x+6) and (5x+6).
A/Q After 4 years, the new ratio will be 11:10.
So, we will add 4 to their present ages i.e. (6x+6) and (5x+6).
We get (6x+6+4) and (5x+6+4).
Jasika said:
1 decade ago
(x-6)/(y-6)=6/5......as 6 years ago ratio is 6/5
(x+4)/(y+4)=11/10...as after 4 years ratio is 11/10
by solving by solving y=4 years...den why it is wrong?
(x+4)/(y+4)=11/10...as after 4 years ratio is 11/10
by solving by solving y=4 years...den why it is wrong?
Vinod said:
1 decade ago
10(6x + 10) = 11(5x + 10)
just explin the next step
5x = 10
just explin the next step
5x = 10
Khaisar said:
1 decade ago
I've solved by taking present ages as x and y.
(x-6)/(y-6)=6:5
(x-2)/(y-2)=11:10
by solving these i got ans as 10
What is wrong in it?
(x-6)/(y-6)=6:5
(x-2)/(y-2)=11:10
by solving these i got ans as 10
What is wrong in it?
Chanti said:
1 decade ago
Thank you Faruk.
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