Question $2$

Given the cements with the following oxide analysis:

$\backslash$table$[[$Source$,$CaO,$Si{O}_2,A{l}_2{O}_3,F{e}_2{O}_3,S{O}_3,$Free lime$],[A,61\mathrm{.}0\%,25\mathrm{.}0\%,4\mathrm{.}0\%,3\mathrm{.}0\%,2\mathrm{.}5\%,1\mathrm{.}0\%$