Question: 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?
[A].16 years
18 years
20 years
Cannot be determined
[A].
[B].
[C].
[D].
Answer: Option A
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.