Josh and Samantha have been renting a small apartment and have now decided that they are ready to purchase a house.The one they have found has a selling price of $300,000. They will make a 20% down...

Josh and Samantha have been renting a small apartment and have now decided that they are ready to purchase a house.The one they have found has a selling price of $300,000.  They will make a 20% down payment.

Option 1:3.125% interest 30-year mortgage:

Option 2:
2.5% interest 15-year mortgage:

1. Which option will result in a
   lower monthly payment
   if they take the full term of the mortgage? What will that monthly payment be?

1. Which option will result in the
   most total interest
   if they take the full term of the mortgage? What will that total interest be?