Sc Foundations

Hudson 1

Chapter 11

Exercise 1.

D= 300

S = 1000

C = 500

h = .2

Q* = S QRT (2DS)/hC)

(2*300*1000)/(.2*500)

600000/100

6000

6000 = 77.45

Cycle inventory is 77.45

Exercise 2.

TC (Q=100) = (D/Q*)S + (Q/2) hC

(300/100)* 1000 + (100/2) * .2 * 500

3*1000 + 50 * .2 * 500

3000 + 5000 =

8000.00

Each truck load should cost $8000.00

Exercise 3.

I only got the first part. I know I should use a spreadsheet I am working on getting more comfortable and learning. If I had the time I would take a class. I am sorry.

Da = 20,000 Db =2500 Dc=900

S= 400 s = 400 s = 400

Ca= 5.00 Cb = 4.00 Cc= 5.00

h = .2 h=.2 h=2

Q A= (2* 20,000*400) / (.2*5.00)= 1264.9

Qb =(2* 2500*400)/ (.2*4.00)= 1581.1

Qc = (2* 900*400)/ (.2*5.00)=268.3

Next part should be cost. I was not sure which formula to use for cost. I ran a few and it did not come out.

After figuring cost the next step would be add them for a total cost.

Hudson 2

Chapter 12

Exercise 1. (Pg 323)

D= 2 * 300= 600

Sd = 200 2

CSL= .95

Ss= fs (CSL) * dl = 1.63 * 200 2= 465.23

ROP = RL + ss = 1065

ROP is 1065 units of phones

Exercise 2. (pg 343)

D= 300 Sd = 200 2

DT+L = (t+l) * 300 = (3 +2 ) * 300 = 1500

SD = 200 t+l= 200 5

Csl= .95

Ss= fs (CSL) * sd= 1.6444853 * 200 5 = 735.60

OUL = dt+l + ss = 2235.60

Safety inventory is 2235

Exercise 3. (pg 324)

D= 300 Sd = 200 2

Fr= .99 Q= 500

ESC formula ESC =(1-fr)* Q+(1-.99) *500 =5

I plugged in the next step formula on page 324 into calculator and got ss = 484.776 ( my son helped me)

ROP = d + ss+ 1084

ROP 1084