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State whether the following statement is True or False: In assignment problem, if number of columns is greater than number of rows, then a dummy row is added - Mathematics and Statistics

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Question

State whether the following statement is True or False:

In assignment problem, if number of columns is greater than number of rows, then a dummy row is added

Options

  • True

  • False

MCQ
True or False
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Solution

True

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Chapter 2.7: Assignment Problem and Sequencing - Q.3

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SCERT Maharashtra Mathematics and Statistics (Commerce) [English] 12 Standard HSC
Chapter 2.7 Assignment Problem and Sequencing
Q.3 | Q 4

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RELATED QUESTIONS

A job production unit has four jobs A, B, C, D which can be manufactured on each of the four machines P, Q, R and S. The processing cost of each job is given in the following table:

         Jobs

 

 

                          Machines

P

Q

R

S

                Processing Cost (Rs.)

 

A

31

25

33

29

B

25

24

23

21

C

19

21

23

24

D

38

36

34

40

 How should the jobs be assigned to the four machines so that the total processing cost is minimum?


Solve the following minimal assignment problem and hence find the minimum value : 

  I II III IV
A 2 10 9 7
B 13 2 12 2
C 3 4 6 1
D 4 15 4 9

 


Solve the following minimal assignment problem : 

Machines A B C D E
M1 27 18 20 21
M2 31 24 21 12 17
M3 20 17 20 16
M4 21 28 20 16 27

Determine `l_92 and l_93, "given that"  l_91 = 97, d_91 = 38 and q_92 = 27/59`


Solve the following minimal assignment problem and hence find minimum time where  '- ' indicates that job cannot be assigned to the machine : 

Machines Processing time in hours
A B C D E
M1 9 11 15 10 11
M2 12 9 - 10 9
M3 - 11 14 11 7
M4 14 8 12 7 8

A job production unit has four jobs A, B, C, D which can be manufactured on each of the four machines P, Q, R and S. The processing cost of each job for each machine is given in the following table:

Jobs Machines
(Processing Cost in ₹)
P Q R S
A 31 25 33 29
B 25 24 23 21
C 19 21 23 24
D 38 36 34 40

Find the optimal assignment to minimize the total processing cost.


Five wagons are available at stations 1, 2, 3, 4, and 5. These are required at 5 stations I, II, III, IV, and V. The mileage between various stations are given in the table below. How should the wagons be transported so as to minimize the mileage covered?

  I II III IV V
1 10 5 9 18 11
2 13 9 6 12 14
3 3 2 4 4 5
4 18 9 12 17 15
5 11 6 14 19 10

The assignment problem is said to be unbalance if ______


Choose the correct alternative :

In an assignment problem if number of rows is greater than number of columns then


Fill in the blank :

When an assignment problem has more than one solution, then it is _______ optimal solution.


In an assignment problem, if number of column is greater than number of rows, then a dummy column is added.


Solve the following problem :

A plant manager has four subordinates, and four tasks to be performed. The subordinates differ in efficiency and the tasks differ in their intrinsic difficulty. This estimate of the time each man would take to perform each task is given in the effectiveness matrix below.

  I II III IV
A 7 25 26 10
B 12 27 3 25
C 37 18 17 14
D 18 25 23 9

How should the tasks be allocated, one to a man, as to minimize the total man hours?


Choose the correct alternative: 

Assignment Problem is special case of ______


Choose the correct alternative:

When an assignment problem has more than one solution, then it is ______


In an assignment problem if number of rows is greater than number of columns, then dummy ______ is added


State whether the following statement is True or False:

The objective of an assignment problem is to assign number of jobs to equal number of persons at maximum cost


Give mathematical form of Assignment problem


What is the difference between Assignment Problem and Transportation Problem?


Choose the correct alternative:

The purpose of a dummy row or column in an assignment problem is to


Choose the correct alternative:

In an assignment problem involving four workers and three jobs, total number of assignments possible are


A dairy plant has five milk tankers, I, II, III, IV and V. Three milk tankers are to be used on five delivery routes A, B, C, D and E. The distances (in kms) between the dairy plant and the delivery routes are given in the following distance matrix.

  I II III IV V
A 150 120 175 180 200
B 125 110 120 150 165
C 130 100 145 160 170
D 40 40 70 70 100
E 45 25 60 70 95

How should the milk tankers be assigned to the chilling center so as to minimize the distance travelled?


A job production unit has four jobs P, Q, R, and S which can be manufactured on each of the four machines I, II, III, and IV. The processing cost of each job for each machine is given in the following table:

Job Machines
(Processing cost in ₹)
I II III IV
P 31 25 33 29
Q 25 24 23 21
R 19 21 23 24
S 38 36 34 40

Find the optimal assignment to minimize the total processing cost.


Five wagons are available at stations 1, 2, 3, 4 and 5. These are required at 5 stations I, II, III, IV and V. The mileage between various stations are given in the table below. How should the wagons be transported so as to minimize the mileage covered?

  I II III IV V
1 10 5 9 18 11
2 13 9 6 12 14
3 7 2 4 4 5
4 18 9 12 17 15
5 11 6 14 19 10

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