For the following activities and duration, The expected time of completion is _______ days

Activity	Predecessor	Duration (in weeks)
		Optimistic	Most likely	Pessimistic
A	-	5	6	7
B	-	1	3	5
C	-	1	4	7
D	A	1	2	3
E	B	1	2	9
F	C	1	5	9
G	C	2	2	8
H	E, F	4	4	10
I	D	2	5	8
J	H, G	2	2	8