Kindly answer all the questions and use 360 days in a year in all problems. Thank you.

1.DEF has total forecasted gross purchases of P4,500,000 relating to a major supplier for the coming year. The supplier is offering a credit term of 3/15, n/45. How much is the simple annual effective cost of paying on the 45th day?

2. ABC can take a 45-day loan with a 15% interest deducted in advance, to be reapplied each time. How much is the simple annual cost of the loan?

3.ABCs bank offered a loan with conditions of a P5,000,000 face amount, 6-month term, 4% interest deducted in advance and bank charge of P30,000.How much is the compounded annual effective cost of the bank loan?