1. Using suitable examples explain 'achieving competitive advantage through operations. 2. Explain product life cycle using suitable examples. 3. Mr. Ahmed is currently working a total of 10 hours per day to produce 250 Chairs. He thinks that by changing the wood for the chair he can increase his production to 400 . Material cost for each chair is 40 Riyals. Apart from raw material he spends about 50 riyals on some other supplies. Another 40 Riyal is the energy cost. And he should be making 25 Riyals per hour for his time. From the above given data calculate how what is the present productivity and how will it improve with the new material. 4. Given the following time chart (1) Draw the network diagram (2) What is the critical path. (3) What is the project completion time. (4) Slack time for each activity 5. Given the following time chart: Find out the following: - Expected time for each activity. - Variance for each activity. - Critical path. - Total project completion time. - Variance in completion time for the critical path