9. The previous record of a contractor's bidding encounters against three competitors is: Using Friedman's and Gates' models, determine the mark-up needed to optimize the expected profit in the following cases, and comment on the results: a. Bidding against A,B and C in a new job with estimated total cost of 50 lakh b. Bidding against A,B and C in a new job with estimated total cost of 25 crore c. Bidding against six typical competitors with behaviour close to that of competitor B Comment on the impact of project size in (a) and (b) on the estimated optimum mark-up