A project has 79 activities but only 9 activities are discussed here. Activity K, duration =37 days, IP= not given Activity Q, duration =20 days, IP= not given Activity D, duration =24 days, IP= not given Activity L, duration =35 days, IP=K Activity P, duration =35 days, IP=K,Q,D Activity A, duration =44 days, IP=G Activity M, duration =43 days, IP=L,P Activity N, duration =49 days, IP=L,P Activity R, duration =41 days, IP=P,A If LF of M=184,LF of N=222, and LF of R=221, find LS(D)