Can I proceed with the table given or i need to change it to worker to job rather than job to worker?

Company PQR has five jobs and five workers where one worker are allowed to do only one job. The time of completing the job depends on the skills of the workers. Table 1 gives the job completion time (in hours) of the assignment. Job Job completion time in hours) Worker 2 Worker 3 Worker 4 Worker 5 Worker 1 2.75 Job 1 2.50 3.30 2.80 1.80 Job 2 0.80 0.20 5.55 1.20 3.40 Job 3 4.70 2.60 5.45 2.80 6.00 2.60 1.80 4.55 2.40 5.00 Job 4 Job 5 3.40 0.40 5.15 1.20 2.60 Table 1 Because of some reason, worker 2 cannot do job 2 and 4. The company observed that worker 3 takes longer time to complete almost each job compared to the other workers. Therefore, they hire the sixth worker who are able to complete each job 0.15 hours less than worker 3. Determine the optimal solution which will minimize the completion time for Company PQR