Question

Kristi and Jason are purchasing a house and are financing $355,000. The mortgage is a 30-year
6/2 ARM at 3.25% with a 3/6 cap structure. What will the remaining balance be after the first 6 years?

Answer 1

This has been answered before https://questioncove.com/study#/updates/512421dce4b086b98ebd8b79

But I am not completely sure how they were able to get it

I did use an online calculator to coincide with the answer
https://www.mortgagecalculators.info/calc-monthlypayment.php#begincontent

(Of course this was assuming the interest rate was flat)