Use the Following Discount Factors When Needed

Short Answer

Use the following discount factors when needed.
-Calculate the duration of the following portfolio:
i. 3 units of a 0.75-year ?xed rate bond paying 6% quarterly.
ii. 4 units of a 2-year ?xed rate bond paying 3% semiannually.
iii. 7 units of a 1.75-year zero coupon bond.
iv. 1 unit of a 2-year ?oating rate bond with no spread paid semiannually.