# The optimal solution is x11 130 x21 181 x12 225 x22

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OM4 C13 IMb.If the company changed the constraints so that monthly labor increases and decreases could not exceed 250 hours, what would happen to the production schedule? How much would the cost increase? What would you recommend?
8.Given the bill of materials for the printer cartridge (A) shown below, a gross requirement to build 170 units of A, on-hand inventory levels for each item as shownin the table below, and assuming zero lead-times for all items A, B, C, D, and E, compute the net requirements for each item.
9. Consider the same bill of material and information in Problem #8 but change component part B(1) to B(2) and the gross requirements for A to 220 units. Computethe net requirements for each item assuming zero lead times. 11
10.Each bank teller workstation is forecasted to process 400 transactions (the end-item)on Friday. The bank is open from 9:00 a.m. to 7:0f0 p.m. on Friday with 90 minutesfor lunch and breaks. Three teller windows are open on Friday. A work-studyanalysis reveals that the breakdown of the transaction mix is 40 percent deposits, 45percent withdrawals, and 15 percent transfers between accounts. A different form isused for each type of transaction, so there is one deposit slip per deposit, onewithdrawal slip per withdrawal, and two transfer slips per transfer.The forecast is for 400 customer transactions during 8.5 hours on Friday at each ofthree teller station. Deposit, withdrawal and transfer slips are “dependent” uponforecast for the end-item (customer transactions). a.How many transfer slips are needed on Friday?
b.How many withdrawal slips are needed on Friday?
c.Deposit slips are delivered every second day. If the on-hand balance ofdeposit slips is 50 at this bank, how many deposit slips should be ordered?