(Percentage Constraint) Let X, Y, and Z be the dollars invested in companies X,

Question

(Percentage Constraint) Let X, Y, and Z be the dollars invested in companies X, Y and Z. f at most 30% of the total investment can be in company Y, _____. -0.3X -0.3Y+0.7Z lessthanorequal 0 Y lessthanorequal 0.3 0.7X -0.3Y-0.7Z lessthanorequal 0 0.3X+0.7Y-0.3Z lessthanorequal 0 Which are the decision variables in a transshipment problem? X_ik=shipping amount from factory i to intermediate distribution center k X_kj=shipping amount from intermediate distribution center k to store j .X_ij=shipping amount from factory i to store j X_ij=1 if agent i is assigned to job j; 0 otherwise (Transshipment Problem) n a transshipment problem, each of 2 factories is connected to 3 intermediate distribution centers and each of 3 intermediate distribution centers is connected to 3 stores. The resulting LP has ____ decision variables. 15 8 12 18

Explanation / Answer

Question 12:

Y 0.3(X+Y+Z)

- 0.3X + 0.7Y - 0.3Z 0

Answer is (D)

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Question 13:

Xik = Shipping amount from factory i to intermediate distribution center k

Xkj = Shipping amount from intermediate distribution center k to store j

Answer is (A)

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Question 14:

Total decision variables Xik = 2*3 = 6

Total decision variables Xkj = 3*3 = 9

Total Decision variables = 6+9 = 15

Answer is (A)

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