1. Operational Research (O.R.) case studies www.theorsociety.com

2. What’s the problem? www.theorsociety.com

3. You are a shop manager… You are opening a new branch and need to employ staff You want to keep your labour costs as low as possible www.theorsociety.com

4. Inexperienced staff are cheaper… …but experienced staff are more productive www.theorsociety.com

5. How many experienced and inexperienced staff should you take on? www.theorsociety.com

6. What do we need to know? How much do you need to pay staff? www.theorsociety.com

7. Inexperienced staff cost £5 an hour Experienced staff cost £8 an hour www.theorsociety.com

8. How productive are inexperienced and experienced staff? www.theorsociety.com

9. Inexperienced staff are two thirds as productive as experienced staff www.theorsociety.com

10. How many staff do you need? www.theorsociety.com

11. You need the equivalent of 20 experienced members of staff www.theorsociety.com

12. Anything else you need to consider? www.theorsociety.com

13. Head Office states that you must employ at least one experienced member of staff for every three inexperienced members of staff www.theorsociety.com

14. Let’s summarise the problem We want to employ the equivalent of at least 20 experienced members of staff www.theorsociety.com

15. with at least one experienced member of staff for every three inexperienced members of staff www.theorsociety.com

16. with the minimum possible labour cost www.theorsociety.com

17. This is an example of www.theorsociety.com

18. Linear Programming Problems The aim is to choose the best combination of a number of quantities to optimise the outcome subject to certain constraints www.theorsociety.com

19. Another example where this is used Factories which make several products deciding how many of each to make weighing up several factors for each product such as the profit to be made, the demand, the time needed to produce it, etc. www.theorsociety.com

20. Over the next few lessons we will learn how to approach problems of this type… www.theorsociety.com

21. To learn more about O.R. visit www.LearnAboutOR.co.uk