This question has the answers. I know the first step is to drop the lowest price on the critical path, which is C by one week. Now you have 9 weeks on both paths so you have two critical paths. So, why don't you just drop C by an additional 2 weeks to get to the goal of 7 weeks? Why is the answer 2 on B which is a total of 5 weeks? Can you answer that so I understand the concept?

The folloroving is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per week: Suppose that Rafay is only given 7 weeks (instead of 10) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration. What is the total crashing cost? $ (Enter your response as a whole number.) The folloroving is a table of activities associated with a project at Rafay Ishfaq's software firm in Chicago, their durations, what activities each must precede and the crash cost to reduce duration per week: Suppose that Rafay is only given 7 weeks (instead of 10) to complete the project. By how many weeks should each activity be crashed in order to meet the deadline? Assume that you can crash an activity down to 0 weeks duration. What is the total crashing cost? $ (Enter your response as a whole number.)