ers $5,7,8$

$($i$)$

Bjorn and Thor are plumbers who have been scheduled to work on the construction of a new school building. Just before the start of the project, Bjorn broke his arm and cannot work on the project. Now Thor has to handle his own activities as well as Bjorn's. Level the project Gantt chart so that Thor is responsible for activities $3,4,6,$ and $7.$

How will the project completion date be affected?

New project completion date would be

earlier by $1$ day.

extended by $1$ day.

extended by $4$ days.

not affected.