• # question_answer The ratio of the ages of A and B is 3 : 5. After 6 years, the ratio of their ages will be 2 : 3. The present age of A is? A) 18 yearsB)               20 yearsC) 24 years           D) 28 years

Let ages of A and B are $3x$ and $5x$ respectively. Then, after 6 years $\frac{3x+6}{5x+6}=\frac{2}{3}$ $9x+18=10x+12$ $x=6$ Hence, the age of $A=3x=3\times 6$ = 18 years