Consider the following:

Activity	a	m	b	Predecessor
A	3	6	8	---
B	2	4	4	---
C	1	2	3	---
D	6	7	8	C
E	2	4	6	B,D
F	6	10	14	A,E
G	1	2	4	A,E
H	3	6	9	F
I	10	11	12	G
J	14	16	20	C
K	2	8	10	H,I

What is the total project completion time, assuming that we are using the 3-time estimate for activity durations. Columns "a", "m" and "b" represent the optimistic, most likely and pessimistic estimates?