How do you calculate NorthWest corner method?

What is the NorthWest corner rule?

The North West corner rule is a method for computing a basic feasible solution of a transportation problem, where the basic variables are selected from the North – West corner ( i.e., top left corner ). The standard instructions for a transportation model are paraphrased below.

What are the 8 steps algorithm for NorthWest corner cell method?

North-West Corner Method (NWCM) Steps (Rule)
Step-1: Select the upper left corner cell of the transportation matrix and allocate min(s1, d1).
Step-3: Repeat this steps until all supply and demand values are 0.

What is the total transportation cost using the NorthWest corner method?

Here, NorthWest Corner Method will be used. And according to the NorthWest Corner Method this is the final initial basic feasible solution: Now, the total cost of transportation will be (200 * 3) + (50 * 1) + (250 * 6) + (100 * 5) + (250 * 3) + (150 * 2) = 3700.

Which statement is true if north west corner method is used for solving?

So, the North West Corner method is used to compute the initial feasible solution. This method starts from the north west (i.e., upper left) cell. From the figure above, we can clearly see that 20 units are assigned to the first cell (i.e., upper left) that satisfies the demand of D. So, option A is the correct Answer.

How do you solve the least cost method?

Solution: According to the Least Cost Cell method, the least cost among all the cells in the table has to be found which is 1 (i.e. cell (O1, D2)). Now check the supply from the row O1 and demand for column D2 and allocate the smaller value to the cell. The smaller value is 300 so allocate this to the cell.

How do you solve an unbalanced transportation problem?

These unbalanced problems can be easily solved by introducing dummy sources and dummy destinations. If the total supply is greater than the total demand, a dummy destination (dummy column) with demand equal to the supply surplus is added.

What is Modi method?

MODI method is an improvement over stepping stone method. This model studies the minimization of the cost of transporting a commodity from a number of sources to several destinations. The supply at each source and the demand at each destination are known.

What is the difference between north west corner method and least cost method?

The Least Cost Method is considered to produce more optimal results than the North-west Corner because it considers the shipping cost while making the allocation, whereas the North-West corner method only considers the availability and supply requirement and allocation begin with the extreme left corner, irrespective …

Why Vogel’s approximation method is best?

Vogel’s Approximation Method (VAM) usually provides better result in comparison to othet methods for finding initial basic feasible solution. Vogel’s Approximation Method gives better result with less iterations. Among the traditional methods, VAM usually gives better initial basic feasible solution.

What is LCM and VAM?

North West Corner Method (NWCM) , Least Cost Method (LCM) and Vogel’s Approximation Method (VAM) are the classical methods for solving transportation problems and are well discussed in all the operation research books. NWCM was introduced by Charnes in 1953, VAM was introduced by Reinfeld and Vogel in1958, LCM.

How do you calculate minimum cost in transportation problem?

What is penalty in Vogel approximation method?

The main concept of VAM algorithm is the penalty cost which is determined by the difference of smallest and next to smallest cost of each row and column where highest penalty indicate that one of the value of two minimum costs is too higher than another.

What is Vogel’s method?

A method for finding a first feasible solution to a transportation problem. The procedure begins by finding the two lowest cost cells for each row and column in the transportation problem array. … After each assignment, the Vogel numbers are recomputed based on the remaining rows and columns in the array.