4. Suppose that the company wishes to buy $6 million. The transaction limits for different currencies are the same as in the original problem. Devise a buying schedule for this transaction, given that mix may not include more than €3 million, £2 million, and KD2 million.

5. Suppose that the company has $2 million, £5 million, £4 million. Devise a buy-sell order that will improve the overall holdings converted to yen.