Q 4: In table 2, a balance transportation problem is shown; the shown data is for a stage of solution. Use the U-V method to determine whether the solution obtained for this stage is optimal or not. Illustrate your solution. (10) Marks Table 2 V V2 V3 V4 Vs Supply 4 150 6 170 8 5 6 320 U2 6 5 40 7 270 10 100 6 410 U. 4 10 12 170 8 170 UA 5 4 7 50 7 220 270 Desti 1170 natio 150 210 270 320 220 1170 ns