1/2 İstanbul Kültür University Faculty of Engineering and Architecture Department of Industrial Engineering IE 250 Introduction to Industrial Engineering – Final Exam Practice Question 1 (20 points) Determine the critical path for the network shown below, where the numbers are t o – t m – t p . What is the time of completion for the critical path that has an 80% chance of being achieved? Question 2 (15 points) You invest $1000 at the end of each year for 10 years (beginning with end of year 1) and then stop adding to the investment. Your fiend then starts investing $1000 at the end of each year (beginning with the end of year 11) forever. Both investments earn 12%. In what year will your friend’s investment be worth more than yours?