Given the gradation curves shown for $4$ soil samples $1,3,5$ and $7,$ collected from $4$ locations. It is required to classify these soils according to AASHTO and Unified Classification Systems by filling the following Table:

Calculate Also the group index $($GI$)$ for each soil$>$

$\backslash$table$[[\backslash$table$[[$Soil$],[$Sample$]],\backslash$table$[[$I$.$L$],[\%$