5 98. The solution shown was obtained by Vogel's approximation. The difference between the objective function for this solution and that for the optimal is To= 1 2 3 Dummy Supply 10 8 12 LO From A 100 100 6 4 LO B 120 30 150 10 19 L6 0 C 80 170 250 Demand 120 80 60 200 100