Question

6 years ago, Ravi was three times as old as hari.after 12 years Ravi would be twice as old as hari .how old they are now.

Answer 1

Dear Student ,

$$\begin{gathered} LetAgeofRaviisxandageofhariisy \\ Accordingtogivencondition \\ \left(x-6\right)=3\left(y-6\right) \\ x-6=3y-18 \\ 3y-x=12....\left(i\right) \\ Again \\ x+12=2\left(y+12\right) \\ x+12=2y+24 \\ x-2y=12.......\left(ii\right) \\ Nowaddingequation\left(i\right)and\left(ii\right) \\ y=24 \\ puttingvalueofyinequation\left(ii\right) \\ weget, \\ x-2\times 24=12 \\ x=12+48 \\ x=60 \\ Therefore\mathit{A}\mathit{g}\mathit{e}\mathbf{}\mathit{o}\mathit{f}\mathbf{}\mathit{R}\mathit{a}\mathit{v}\mathit{i}\mathbf{}\mathit{i}\mathit{s}\mathbf{}\mathbf{60}\mathbf{}\mathit{y}\mathit{e}\mathit{a}\mathit{r}\mathit{s}\mathbf{}\mathit{a}\mathit{n}\mathit{d}\mathbf{}\mathit{a}\mathit{g}\mathit{e}\mathbf{}\mathit{o}\mathit{f}\mathbf{}\mathit{H}\mathit{a}\mathit{r}\mathit{i}\mathbf{}\mathbf{}\mathit{i}\mathit{s}\mathbf{}\mathbf{24}\mathbf{}\mathit{y}\mathit{e}\mathit{a}\mathit{r}\mathit{s} \end{gathered}$$

Regards