Meg purchased a stereo system at a local store. It cost $675. She
paid for it in six equal installments of $139 each. How much
interest did she pay?
a. $134
b. $159
c. $268
d. $675
The total amount paid in installments is $139 x 6 = $834.
Therefore, the interest paid is $834 - $675 = $159.
Answer: b. $159