step-by-step explanation:
i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2
4
25
5258y
54.
t5
5r
54
5856
542
5458
86
.8558.65
565
55898
786
8/95
5896
8656265
556478
493 would be the correct answer