Q$.4$ Use Stepping stone method or MODI unethod to find the minimum transportarion cost for the following transportation problem:

A firm has rwo factories and supplies goods to three deaters. The production oapacities of these factories are $800$ and $500$ units per month respectively. The monthly orden from the dealers are $300,300$ and $400$ units respectively. The unit transportation cost is given in rupees in the followinil table.

$\backslash$table$[[$Faciories$,$Dealer $1,$Dealer $2,$Dealer $3,$Supply$],[1,30,20,10,800],[2,5,15,25,500],[$Demand$,300,300,400,]]$