OUESTION $4[$Total: $13$ marks$]$

Three students are to be recruited as part$-$time workers in a restaurant. Each student can work in a restaurant only one day in a week. The daily wages $($in RM$)$ incurred for each student on each day is shown in the following table:

$\backslash$table$[[,$Monday,Tuesday,Wednesday,Thursday$],[$Ahmad$,110,110,90,70],[$Bob$,70,90,80,120],[$Chow$,130,140,100,90]]$

The restaurant manager wants to find the minimum total wages paid. Determine the optimal assignment using the Hungarian method. What are the minimum total wages?

$[13$ marks$]$