For each of the following activities and corresponding estimated information, calculate the following information:

1. Production rate per crew for each activity (units per crew hour)
2. Time to complete each activity (hours)
3. Duration of each activity (whole days, rounded up)

Activity	PIB	Production Rate (units per man-hour)	Quantity of material (units)	Workers per crew
A or 5	None	3.125	200	2
B or 10	5	3.125	300	4
C or 15	5	3.125	200	2
D or 20	10, 15	6.250	100	1
E or 25	15	3.125	300	4
F or 30	20	6.250	100	2
G or 35	20, 25	3.125	300	3
H or 40	25	6.250	300	2
I or 45	30, 35, 40	6.250	200	2