1. Explain the various steps involved in solving transportation problem using (i) Least cost method, and (ii) Vogel's approximation method.

2. Explain the (i) North-West Corner method, (ii) Least-Cost method, and (iii) Vogel's Approximation method, for obtaining an initial basic feasible solution of a transportation problem.

Self Practice Problems A 1. Determine an initial basic feasible solution to the following transportation problem by using (a) NWCR, (b) LCM and (C) VAM. Open table as spreadsheet Destination D D2 D3 D4 Supply S1 21 16 15 3 11 Source S2 17 18 14 23 13 32 27 18 41 19 S3 Demand 6 6 8 23 1. Consider four bases of operation B; and three targets T;. The tons of bombs per aircraft from any base that can be delivered to any target are given in the following table: Open table as spreadsheet Target (T;) 11 Tz T B1 8 6 5 Base (B) 6 6 6 B2 B3 10 8 4 B4 8 6 4. The daily sortie capability of each of the four bases is 150 sorties per day. The daily requirement of sorties spread over each individual target is 200. Find the allocation of sorties from each base to each target which maximizes the total tonnage over all three targets. Explain each step in the process