Question

$A,B$ and $C$ are activities to be executed in that order. Their total durations, in days, are 15, 24 and 18 respectively. However, for better estimation of overall total duration, they are put into a ladder network with 3 equal sub-parts of each. The modified total duration for total completion of all the activities will be

• A. 41 days
• B. 35 days
• C. 37 days
• D. 39 days

Answer 1

The correct option is B 35 days

In ladder network, the duration will be the sum of the duration of activity having maximum duration and 1/3 of the durations of other two activities.
$\therefore$ Modified total duration
$=24+\frac{1}{3}(15+18)=35days$