Question

Consider the following network of activities, with each activity named A-L, illustrated in the nodes of the network

The number of hours required for each activity is shown alongside the nodes. The slack on the activity L, is ____ hours.

Answer 1

The correct option is A 2

$\text{Time along path A - B - C - F - I - J - K = 42 hours}$

$\text{Time along path A - B - C - E - H - L = 31 hours}$

$\text{Time along path A - B - C - D - G - H - L = 40 hours}$

$\text{Slack for L = 42 - 40 = 2 hours}$