According to available data shown in Tables 2, calculate the following: a. Compute the desired Gradation (blend ratios of each fraction) using trial and error method. b. Find Total Gsb, Gse Pba and Pbe according to asphalt Gb 1.015, Gmm-2.658 and Pb-4.5%. Tabe 2: Aggregate Gradation Analysis Mid Specifications Limits Sieve Blend A Size (in) Gradation Limits 3/4" 100 100 100 100 1/2" 90 100 100 80-100 3/8" 59 100 100 70-90 No.4 16 96 100 50-70 No.8 3.2 82 100 35-50 No.30. 1.1 51 100 18-29 No.50 36 98 13-23 No.100 21 93 8-16 No.200 9.2 82 4-10 Gsb 2.785 2.687 2.734 Note: Gse 100 x Gsb Gb GsbxGse Pmm - Pb Pmm | Gse Gmm Pba %3D Pb Ps Pb Gmm Gb Gse Gb Pba Pbe = Pb -xPs 100