Total number of employees = 5
Time spend by each employee = 6 4/15
= 6 (4/15*60)
= 6 hrs (4*4 minutes)
= 6 hrs 16 minutes
= 360+16 minutes
= 376 minutes
Time spend by 5 employees = 5* 376
= 1880 minutes
We should find answer in hours
Therefore , time spend = 1880/60
= 94/3
= 31 1/3 hrs
Therefore, time spend by 5 employees is 31 1/3 hrs