Answer:
The answer is "Option b".
Explanation:
When the typo-It should be the last for 15 years:
[tex]NPV=-5\times (25000+15000)+0.33\times \frac{250000}{14\%} \times (1-\frac{1}{1.14^{15}})[/tex]
After solving the equation we get
[tex]=306728.85878 \\\\=\$ 306729\\\\[/tex]
When it was the last 25 years
[tex]NPV=-5\times(25000+15000)+0.33\times \frac{250000}{14\%}\times(1-\frac{1}{1.14^{25}})=367016.51358[/tex]