$\begin{matrix}    (Mahlol)\,HA:\,pH=2\Rightarrow \left[ {{H}^{+}} \right]={{10}^{-2}}\,\,,\,\,\alpha =\frac{\left[ {{H}^{+}} \right]}{\left[ HA \right]}\Rightarrow \left[ HA \right]=\frac{{{10}^{-2}}}{0/1}=0/1  \\    (Mahlol)\,HB:\,pH=3\Rightarrow \left[ {{H}^{+}} \right]={{10}^{-3}}\,\,,\,\,\alpha =\frac{\left[ {{H}^{+}} \right]}{\left[ HB \right]}\Rightarrow \left[ HB \right]=\frac{{{10}^{-3}}}{0/2}=5\times {{10}^{-3}}  \\ \end{matrix}$  $\begin{matrix}    {{\left[ HA \right]}_{(Taadoli)}}={{\left[ HA \right]}_{(Avvalieh)}}-{{\left[ HA \right]}_{(Yonesh\,Yafteh)}}={{\left[ HA \right]}_{(Avvalieh)}}-\left[ {{H}^{+}} \right]=0/1-0/01=0/09  \\    {{\left[ HB \right]}_{(Taadoli)}}={{\left[ HB \right]}_{(Avvalieh)}}-{{\left[ HB \right]}_{(Yonesh\,Yafteh)}}={{\left[ HB \right]}_{(Avvalieh)}}-\left[ {{H}^{+}} \right]=0/005-0/001=0/004  \\ \end{matrix}\Rightarrow \frac{0/09}{0/004}=22/5$