With a payment of $200 monthly for 3 years, to find the total amount paid you just need to multiply this value by the total of months. Every year has 12 months, then, 3 years have 36 months.

Multiplying $200 by 36 we get

Paying $200 monthly for 3 years, you would pay only $7200, and this is less than the amount borrowed. This is indeed "too good to be true".