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 B. 18 years C. 20 years D. Cannot be determined Answer: Option AShow Answer
Solution(By Apex Team)
Let the ages of Kunal and Sagar 6 years ago
be 6x and 5x years respectively.
$\begin{array}{l}
\text { Then, } \frac{(6 x+6)+4}{(5 x+6)+4}=\frac{11}{10} \\
\Rightarrow 10(6 x+10)=11(5 x+10) \\
\Rightarrow 5 x=10 \\
\Rightarrow x=2 \\
\therefore \text { Sagar’s present age } \\
=(5 x+6) \text { years } \\
=16 \text { years }
\end{array}$