Construction Management - Engineering

Q1:

If t is the duration of an activity, t1 is the latest finish possible moment of its preceding activity and t2 is the earliest start possible moment, the independent float of the activity is

A (t1 - t2) - t

B t - (t1 - t2)

C (t1 + t2) - t

D t + (t1 - t2)

ANS:A - (t1 - t2) - t

t2-(t1+t) is the correct answer for this.