Problem # $3(6$ Points$)$For the soil described in the shown grain size distribution curve and given that L$.$L $=28$ and P$\mathrm{.}24,$ determine:$1.$ Coefficient of gradation$2.$ Percentages of gravel, sand and fines according to USCS $($Gravel $76,2-4\mathrm{.}75,$ Sand $4\mathrm{.}75-0\mathrm{.}075,$ fines $<0\mathrm{.}075$ mm$)3.$ Classify the soil using USCS, do not find give group symbol$\mathrm{.}1\mathrm{.}2$:$78$P$.$ L $=24$P$.$T$=44.$ Classify the soil using AASHTO and give also group index.Grain Size Distribution Curve