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A large renovation of the Hard Rock casino has six activitres $(10$ weens$).$ The estimated times and immediate predecessors are given in the following table $(a=$ Optimistic, $m=$most likely, $b=$ pessimistic times$).$ Assume that the activity times are independent:

$\backslash$table$[[,,$Time$],[$Activity$,\backslash$table$[[$Immediate$],[$predecessor$($s$)]],$a$,$m$,$b$],[$A$,-,11,15,19],[$B$,-,27,31,41],[$C$,-,18,18,18],[$D$,$A$,$B$,9,10,11],[$E$,$C$,5,8,11],[$F$,$D$.$E$,16,19,22]]$

a$)$ Determine the tolal expected projent completion the.

b$)$ If activity $A$ is delayed lot $10$ cays. what is the impact an the project tinish time?

Select one:

a$)42$ wooks; b$)$ C$.$E$.$F

a$)61$ weeks; b$)$ Project will delay $10$ disys:

a$)61$ wooks; b$)$ No impact on the finish time of the propest

a$)59$ weeks; b$)$ No impact on the timsth tirme col tho propect

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