Answer:
2
Step-by-step explanation:
Total hours spent is:
[tex]1\frac{1}{2}+ 1\frac{1}{2} +2\frac{1}{2}+ 2\frac{1}{2} = 8[/tex] (8hrs)
[tex]\frac{8 hours}{4 days} = 2hours/day[/tex]
