Kristen's Cookie Company

KRISTEN'S

COOKIE

COMPANY (A1)

The overview of the process:

QUESTION 1

If we make a table, we can see that the minimum time to fill a rush order is 26 minutes.

ACTIVITY RESOURCE TIME START TIME FINISH TIME

Order Entry E-mail 0 minutes 00:00 00:00

Wash Bowl, Mix Self 6 minutes 00:00 00:06

Fill Tray Self 2 minutes 00:06 00:08

Start Oven Roommate 1 minute 00:08 00:09

Baking Oven 9 minutes 00:09 00:18

Remove Roommate 0 minutes 00:18 00:18

Cool None 5 minutes 00:18 00:23

Pack & Collect Money Roommate 3 minutes 00:23 00:26

QUESTION 2

It doesn't take twice as long to produce two batches as it does to produce one batch, because we can start mixing the second batch without having to wait for the whole first-batch process to be completed (we can start washing out the bowl as soon as we finish filling the tray).

Plus, for the second order, we have to wait 2 minutes to finish baking process of the first order for using the owen again.

It is possible to produce two batches in 36 minutes. This shows that it takes an additional 10 minutes for each extra dozen (Similarly it takes 46 minutes to produce 3 dozen). In 4 hours per night, it is possible to produce 22 dozen of cookies.

ACTIVITY RESOURCE TIME START TÐ"ÑœME FINISH TIME

Order Entry 1 E-mail 0 minutes 00:00 00:00

Wash Bowl, Mix 1 Self 6 minutes 00:00 00:06

Fill Tray 1 Self 2 minutes 00:06 00:08

Start Oven 1 Roommate 1 minute 00:08 00:09

Baking 1 Oven 9 minutes 00:09 00:18

Remove 1 Roommate 0 minutes 00:18 00:18

Cool 1 None 5 minutes 00:18 00:23

Pack & Collect Money

Order Entry 2 Roommate

E-mail 3 minutes

0 minutes 00:23

00:00 00:26

00:00

Wash Bowl, Mix 2 Self 6 minutes 00:08 00:14

Fill Tray 2 Self 2 minutes 00:14 00:16

Start Oven 2 Roommate 1 minute 00:18 00:19

Baking 2 Oven 9 minutes 00:19 00:28

Remove 2 Roommate 0 minutes 00:28 00:28

Cool 2

Pack & Collect Money

None

Roommate 5 minutes

3 minutes 00:28

00:33

00:33

00:36

QUESTION 3

If we assume that all orders are for one dozen cookies, for myself it takes 8 minutes; for my roommate it takes 4 minutes.

For my self

Wash Bowl,Mix 6 minutes

Fill Tray 2 minutes

For my Roommate

Oven 1 minute

Pack & Collect Money 3 minutes

QUESTION 4

We have two type of cost : ingredients and labor. The cost of ingredients is the same per dozen, no matter how many dozen we bake. But the labor cost differs.

For one dozen cookie, as we state above, total labor minutes is 12 minutes. (8 for me; 4 for my roommate)

But if we make two dozen cookies, it increase to 17 minutes. (10 for me; 7 for my roommate)

ACTIVITY RESOURCE TIME START TÐ"ÑœME FINISH TIME

Order Entry E-mail 0 minutes 00:00 00:00

Wash Bowl, Mix Self 6 minutes 00:00 00:06

Fill Tray 1

Fill Tray 2 Self

Self 2 minutes

2 minutes 00:06

00:08 00:08

00:10

Start Oven 1 Roommate 1 minute 00:08 00:09

Baking 1 Oven 9 minutes 00:09 00:18

Remove 1 Roommate 0 minutes 00:18 00:18

Cool 1

Pack 1 None

Roommate 5 minutes

2 minutes 00:18

00:23 00:23

00:25

Start Oven 2 Roommate 1 minute 00:18 00:19

Baking 2 Oven 9 minutes 00:19 00:28

Remove 2 Roommate 0 minutes 00:28 00:28

Cool 2

Pack 2

Collect Money

None

Roommate

Roommate 5 minutes

2 minutes

1 minute 00:28

00:33

00:35

00:33

00:35

00:36

For three dozen cookie, we have to spend 22 minutes total labor. (12 for me; 10 for my roommate).

ACTIVITY RESOURCE TIME START