3. Each business day, on average, a company writes checks totaling 52,000 to pay its suppliers. The usual clearing time for these checks is 2.7 days. Meanwhile, the company is receiving payments from its customers each day, in the form of checks, totaling 69,000. The cash from the payments is available after 1.8 days. Calculate the companys disbursement float, collection float, and net float.

4. A company spends on average 75,000 per week to pay its bills and maintains a lower cash balance limit of 40,000. The applicable interest rate is 6.12 percent and the fixed cost of transferring funds is 32. What is the optimal initial cash balance based on the BAT model?

5. A company plans to borrow 300,000 for 270 days. It was agreed with the bank that the interest for all the period of the loan will be 40,000. Calculate the effective interest rate.