How did they get the discount on note of 15000 in part C? Can someone explain? The answers are all given so do not give me answers

PROBLEMS Pr. 13-153-Accounts and Notes Payable. Described below are certain transactions of Lamar Company for 2014: 1. On May 10, the company purchased goods from Fox Company for $75,000, terms 2/10, n/30. Purchases and accounts payable are recorded at net amounts. The invoice was paid on May 18. 2. On June 1, the company purchased equipment for $90,000 from Rao Company, paying 30,000 in cash and giving a one-year, 9% note for the balance. 3. On September 30, the company discounted at 10% its S200.000, one-year zero-interest- bearing note at Virginia State Bank Instructions (a) Prepare the journal entries necessary to record the transactions above using appropriate (b) Prepare the adjusting entries necessary at December 31, 2014 in order to properly report (c) Indicate the manner in which the above transactions should be reflected in the Current dates interest expense related to the above transactions. Assume straight-line amortization of discounts. Liabilities section of Lamar Company's December 31, 2014 balance sheet Solution 13-153 (a) May 10, 2014 Purchases/Inventory 73,500 Accounts Payable." 73,500 May 18.2014 Accounts Payable 73,500 Cash... 73,500 90,000 Equipment.. qas 30,000 60,000 Notes Payable 14 Cash Discount on Notes Payable n20 00 180,000 20,000 200,000 Notes Payale. 3,150 (b) Interest Expense . ? 3,150 et. Interest payable ($60,000 x .09 7/12 Interest Expense. -(2 5,000 5,000 Discount on Notes Payable ($20,000-31 (c) Current Liabilities $ 3,150 Interest payable Note payable-Rao Company Note payable-Virginia State Bank Less: Discount on note $200.000 60,000 15,000 185,000 248,150