There are two different types of loans. One of them is called Government subsidized loan and the other one is called Government unsubsidized loan. The subsidized loan that the government pays the interest while you are in college, and the unsubsidized just means that you pay the interest yourself.
A= 20,000 (1+0, 0466)^20
$49,732/240 months = 207$/month
A= 20,000 (1+0, 0466)^20
$49,732/240 months = 207$/month