SSC CPO SI and ASI Model Paper 1

(1) Let quantity of each sample be Xunits.
Total quantity of acid in three
samples $=\left[\frac{3}{7}+\frac{/4}{5}+\frac{5}{7}\right]\mathit{x}$
Total quantity of water in threesamples $=\left[\frac{4}{7}+\frac{1}{5}+\frac{2}{7}\right]$x
Ratio of acid and water in the newmixture =
$\frac{\mathit{X}\left[\frac{3}{7}+\frac{4}{5}+\frac{5}{7}\right]}{\left[\frac{4}{7}+\frac{1}{5}+\frac{2}{7}\right]}$=$\frac{\frac{\frac{15+28+25}{35}}{20+7+10}}{35}$$=\frac{68}{37}$= 68 : 37