If the outlay is $$100,000$ and the annual after$-$tax cash inflows are $$40,000$ for four years, the IRR is$.$

$21\mathrm{.}86\%$

$29\mathrm{.}64\%$

$22\mathrm{.}12\%$

$22\mathrm{.}18\%$

$23\mathrm{.}10\%.$ The NPV of the project is$.$

$$17,635\mathrm{.}49$

$$12,345\mathrm{.}05$

$$25,555\mathrm{.}0$

$$18,999\mathrm{.}89$

$$24,923\mathrm{.}69.$ The payback period is$.$

$2\mathrm{.}8$ years

$2\mathrm{.}3$ years

$2\mathrm{.}6$ years

$2\mathrm{.}35$ years

$2\mathrm{.}5$ years.