OPERATIONS RESEARCH >INTERNATIONAL EDITI
OPERATIONS RESEARCH >INTERNATIONAL EDITI
4th Edition
ISBN: 9780534423629
Author: WINSTON
Publisher: CENGAGE L
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Chapter 6, Problem 25RP
Program Plan Intro

Optimal solution:

  • Consider the linear programming problem given below:
  • max z= 2x1+x2+x3
  • Subject to constraints:
    • x1+x31
    • x2+x32
    • x1+x23
    • x1,x2,x30

Explanation of Solution

b.

  • The given LP is known as the primal. If the primal is a max problem, then the dual will be a min problem.
  • Define the variables for the max problem to be z,x1,x2,.........xn and the variables for the min problem to be w,y1,y2,.........yn
  • max z= c1x1+c2x2+......+cnxn
  • subject to constraints:
    • a11x1+a12x2+.....+a1nxnb1
    • a21x1+a22x2+.....+a2nxnb2
    • am1x1+am2x2+.....+amnxnbm
  • The dual of the normal max problem is defined below:
  • min w= b1y1+b2y2+......+bnyn
  • Subject to constraints:
    • a11y1+a12y2+.....+a1nync1
    • a21y1+a22y2+.....+a2nync2
    • am1y1+am2y2+.....+amnyncm
  • Given a max problem, the primal is read across the table and the dual is found by reading down.
min w (x10)(x20)

max z

(xn0) 
  x1x2 xn 
(y10)y1a11a12a1nb1
(y20

Explanation of Solution

c.

  • Multiply the right-hand side of each constraint by a non-negative constant k.
    • b=[k2k3k]
  • The right-hand side of the optimal table’s constraints can be found by calculating B1b
  • B1b=[121212121212121212][k2k3k]
  • B1b=[k

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Chapter 6 Solutions

OPERATIONS RESEARCH >INTERNATIONAL EDITI

Ch. 6.3 - Prob. 4PCh. 6.3 - Prob. 5PCh. 6.3 - Prob. 6PCh. 6.3 - Prob. 7PCh. 6.3 - Prob. 8PCh. 6.3 - Prob. 9PCh. 6.4 - Prob. 1PCh. 6.4 - Prob. 2PCh. 6.4 - Prob. 3PCh. 6.4 - Prob. 4PCh. 6.4 - Prob. 5PCh. 6.4 - Prob. 6PCh. 6.4 - Prob. 7PCh. 6.4 - Prob. 8PCh. 6.4 - Prob. 9PCh. 6.4 - Prob. 10PCh. 6.4 - Prob. 11PCh. 6.4 - Prob. 12PCh. 6.4 - Prob. 13PCh. 6.5 - Prob. 1PCh. 6.5 - Find the duals of the following LPs: Ch. 6.5 - Prob. 3PCh. 6.5 - Prob. 4PCh. 6.5 - Prob. 5PCh. 6.5 - Prob. 6PCh. 6.6 - Prob. 1PCh. 6.6 - Prob. 2PCh. 6.7 - Prob. 1PCh. 6.7 - Prob. 2PCh. 6.7 - Prob. 3PCh. 6.7 - Prob. 4PCh. 6.7 - Prob. 5PCh. 6.7 - Prob. 6PCh. 6.7 - Prob. 7PCh. 6.7 - Prob. 8PCh. 6.7 - Prob. 9PCh. 6.8 - Prob. 1PCh. 6.8 - Prob. 2PCh. 6.8 - Prob. 3PCh. 6.8 - Prob. 4PCh. 6.8 - Prob. 5PCh. 6.8 - Prob. 6PCh. 6.8 - Prob. 8PCh. 6.8 - Prob. 9PCh. 6.8 - Prob. 10PCh. 6.8 - Prob. 11PCh. 6.9 - Prob. 1PCh. 6.9 - Prob. 2PCh. 6.9 - Prob. 3PCh. 6.10 - Prob. 1PCh. 6.10 - Prob. 2PCh. 6.10 - Prob. 3PCh. 6.11 - Prob. 1PCh. 6.11 - Prob. 3PCh. 6.11 - Prob. 4PCh. 6.12 - Prob. 5PCh. 6.12 - Prob. 6PCh. 6.12 - Prob. 7PCh. 6 - Prob. 1RPCh. 6 - Prob. 2RPCh. 6 - Prob. 3RPCh. 6 - Prob. 4RPCh. 6 - Prob. 5RPCh. 6 - Prob. 6RPCh. 6 - Prob. 7RPCh. 6 - Prob. 8RPCh. 6 - Prob. 9RPCh. 6 - Prob. 10RPCh. 6 - Prob. 11RPCh. 6 - Prob. 13RPCh. 6 - Prob. 14RPCh. 6 - Prob. 15RPCh. 6 - Prob. 17RPCh. 6 - Prob. 18RPCh. 6 - Prob. 19RPCh. 6 - Prob. 20RPCh. 6 - Prob. 21RPCh. 6 - Prob. 22RPCh. 6 - Prob. 25RPCh. 6 - Prob. 29RPCh. 6 - Prob. 33RPCh. 6 - Prob. 34RPCh. 6 - Prob. 35RPCh. 6 - Prob. 36RPCh. 6 - Prob. 37RP
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