0.25/4 15.3/5 12.4/8 0.15/30 15 3.6 8 1.505 0.005 =0.08028 30 44 30 40 0 40 40 0 +0.08028 3.68028+ 5.18528+ 3.6 1.505 0.005 =5.19028 3.68028 5.18528 5.19028