Subject: mathqa
Question: a new home buyer pays 4 % annual interest on her first mortgage and 9 % annual interest on her second mortgage . if she borrowed a total of $ 325,000 , 80 % of which was in the first mortgage , what is her approximate monthly interest payment ?
Option: 
A: $ 3,466
B: $ 1,354
C: $ 1,733
D: $ 20,796
Answer: B