Answer:
14%
Explanation:
Let IRR from machine be represented with i
Now, $4,120 * Cumulative PV factor (i, 6 periods) = $16,000
Cumulative PV factor (i, 6 periods) = $16,000 / $4,120
Cumulative PV factor (i, 6 periods) = 3.883
Now, we refer to PV factor table, the PV Factor (3.883) falls nearest to i =14%. (See proof in the attached table as attached below)
So therefore, IRR = 14%
So, the machine's internal rate of return is closest to 14%.