Hi, please help me find the complete solutions to these problems please? I provided answers and hope its correct. Thank You & Have a Great Weekend Ahead!!!

12. What is the coupon rate of a Php1.OMM investment that earns Php12K every quarter? (b) 5% 6% 7% 8% 10% (d) ANS: (b) 13. How much is the face value of Daisy's investment if she earns 8% gross or Php20K every 6 months? (a) Php500K Php600K Php625K Php650K Php700K ANS: (c) 14. How long did Rose invest her Php10MM if she received a total of Php2MM for the duration of the placement if the coupon rate of the bond is 10% gross credited semi annually? (b) 1.5 years 2 years 2.5 years 3 years 3.5 years (e) ANS: (c) 15. What is the coupon rate of the Php8OOK RTB of Kitty if she earned a total of Php 6,800.00 after 1.5 years? (a) (b) (c) 5% 6% 7% 8% 9% (e) ANS: (d) 12. What is the coupon rate of a Php1.OMM investment that earns Php12K every quarter? (b) 5% 6% 7% 8% 10% (d) ANS: (b) 13. How much is the face value of Daisy's investment if she earns 8% gross or Php20K every 6 months? (a) Php500K Php600K Php625K Php650K Php700K ANS: (c) 14. How long did Rose invest her Php10MM if she received a total of Php2MM for the duration of the placement if the coupon rate of the bond is 10% gross credited semi annually? (b) 1.5 years 2 years 2.5 years 3 years 3.5 years (e) ANS: (c) 15. What is the coupon rate of the Php8OOK RTB of Kitty if she earned a total of Php 6,800.00 after 1.5 years? (a) (b) (c) 5% 6% 7% 8% 9% (e) ANS: (d)