Problem $1(10$ points$)$

The overhead cost for this project is $$80/$ day.

a$.$ Reduce the project duration to the $$least time$$ schedule.

b$.$

Calculate the $$least cost$$ duration.

Activity

Normal duration

Minimum duration

Daily cost of crashing

A

$3$

$3$

$--$

B

$5$

$4$

$$$$90\mathrm{.}00$

C

$6$

$3$

$$$$220\mathrm{.}00$

D

$6$

$3$

$$$$50\mathrm{.}00$

E

$8$

$4$

$$$$35\mathrm{.}00$

F

$2$

$1$

$$$$60\mathrm{.}00$

G

$3$

$2$

$$$$40\mathrm{.}00$

H

$3$

$2$

$$$$100\mathrm{.}00$

J

$5$

$5$

$--$