Question $4$

The sieve analysis results for soil samples A and $B$ are displayed in the table $r$ Determine the blending ratios of mix A and $B,$ in order to meet the soil specifi $($also displayed in the table$).$

$\frac{2}{3}$

$\backslash$table$[[$Sieve size,Percentage passing,,$],[$Soil A$,$Soil B$,$Specification,Specification$],[,100,$Upper$],[26\mathrm{.}5mm,100,67,70,100],[19\mathrm{.}0mm,99,46,50,100],[9\mathrm{.}5mm,88,33,35,65],[4\mathrm{.}75mm,79,19,25,50],[2\mathrm{.}36mm,72,7,15,30],[0\mathrm{.}425mm,42,5,5,15],[0\mathrm{.}075mm,33,,,]]$