Answer:
Cash A/C Dr. $416000 *(400000*104%)
  To Bonds Payable A/C         $400000
  To Premium on bonds payable A/C  $16000
Interest expenses A/C Dr. $44800
Premium on bonds payable A/C Dr. $3200 (16000/5)
  To cash A/C                      $48000 (400000*12%)
Bonds Payable A/C Dr. $400000
Profit on redemption of bond A/C Dr. $9600
  To cash A/C               $409600
Cash A/C Dr. $188000 *(200000*94%)
Discount on bonds payable A/C Dr. $12000
  To Bonds Payable A/C         $200000
Interest expenses A/C Dr. $22000
  To Discount on bonds payable A/C     $2000 (12000/6)
  To cash A/C                      $20000 (200000*10%)