HOW TO SOLVE UNBALANCED ASSIGNMENT PROBLEM

This is an assignment problem of multiple solution.Due to some recording problem last column of allocation table is not visible.See the answer as follow:
Answer: Set 1: 1-4 , 2-1, 3-5, 4-3,5-2,6-6 time 6,2,3,2,7,0 i.e. 20 hrs
Set 2: 1-5,2-1,3-4,4-3,5-2,6-6 time 1,2,8,2,7,0 i.e. 20 hrs.