Answer:
4.8 hours
Step-by-step explanation:
6 hours = 360 minutes (6x60)
360/5 = 72 (minutes per person worked)
72/2= 36 (person working at half productivity)
36x 8= 288 (total minutes of 8 people working at half productivity)
288/60= 4.8 (cover minutes back to hours)