Answer:
To find the original loan amount that Jane took out, you can use the following formula:
Original loan amount = (Interest paid / Interest rate) * (1 - 1/(1 + Interest rate)^(Number of years))
Plugging in the values, we get:
Original loan amount = (11,960 / 5.2%) * (1 - 1/(1 + 5.2%)^4)
Original loan amount = (11,960 / 0.052) * (1 - 1/(1.052)^4)
Original loan amount = $22,942.31