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?  Select
A) 16 years B) 18 years C) 20 years D) 22 years E) 24 years
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.   16 yearsnswer: 16 years
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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?