60 13. a. Find the general flow pattern in the network shown in the figure. b. Assuming that the flow must be in the directions indi- cated, find the minimum flows in the branches denoted by X2, X3, X4, and x5. 024 80- 60➤ 30 A X1 TC E 20 x2 box 40 sil02-01/ B X5 حمن X3 X4 C x6 • 90.0 DEMOR 40 100 ODHA -90 46 SOLUTIONS TO PRACTIC

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