question_answer

           Consider an activity having a duration time \[{{T}_{\text{ij}}}\] E it the earliest occurrence time and L latest occurrence time (see figure given)  

Consider the following statements in this regard:

1. Total float \[V\text{ }=\text{ }60\text{ }V,\]

2. Free float \[={{E}_{j}}-{{E}_{i}}{{t}_{ij}}\]

3. Slack of the tail event \[={{L}_{j}}-{{E}_{i}}\]

Of these statements:

A) 1, 2 and 3 are correct

B) 1 and 2 are correct

C) 1 and 3 are correct

D) 2 and 3 are correct