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Status : $1234$You're now on Question $4.$ Answered incorrectly. $9$:$37$ PM

You have no more time left to work on this assignment.

Score:

Sorry, you only did $1$ out of $3$ parts correctly.

Answer$($s$)$: $($Your response$($s$)$ are shown below, followed by the correct answer$($s$).)$

Relevant information for a project consisting of activities A$,$ B$,...,$ H is provided in the table below and the project network is provided.

Activity Time $($in Weeks$)$ Cost Immediate Predessors

Normal Crash Normal Crash

A $44$ $$1250$ $$1250$ NA

B $21$ $$1400$ $$1600$ A

C $53$ $$1450$ $$1630$ A

D $65$ $$1650$ $$1664$ B$,$ C

E $54$ $$1150$ $$1160$ B$,$ C

F $32$ $$1250$ $$1290$ D

G $42$ $$500$ $$580$ E

H $31$ $$500$ $$860$ F$,$ G

The project network is:

When all activities are completed in normal time, what is the project completion time?

$21$

$21$

To reduce project completion time by $1$ week at minimum cost, which activity, or activities should be crashed? Enter the letter for the activity $($one character in capital$),$ or letters for the activities in capitals $($two characters in capitals$)($e$.$g$.\text{'}$B$\text{'},\text{'}$AH$\text{'}).$

E

DE

What is the incremental cost to reduce project completion time by $1$ week at minimum cost?

$10$

$24$