A company project has a net present value of $4,000$ at $10\%$ and a net present value of $(1,000)$ at $15\%.$

What is the internal rate of return?

Question $7$Select one:

a$.$

$12\mathrm{.}5\%$

b$.$

$14\%$

c$.$

$16\mathrm{.}7\%$

d$.$

$11\%$