Borrowed is $8000, over 36 months.
1st payment is $37.
Payments increase by $15 each month (so 36th payment = $562).
How much interest has been paid?
36*(37+562)-8000 = 13564 ..... korner...korner...36*(37+562)-8000 =2762
Okay I'll give company for 2 minutes......36*(37+562)-8000 = 13564 ..... korner...korner...
C'mon ... c'mon ... no takers?
Subhotosh's 2762 is not correct...
Yepper!it's $2782
\(\displaystyle 15 \dfrac{36\cdot 35}{2}+36\cdot 37=10782 - 8000 = 2782\)