QUESTION $8$

A company has an investment project project that would cost $$10$million today and yield a payoff of $$15$million in $4$ years.. What is the exact cutoff point for the interest rate between profitabilty and nonprofitabilty

a$.$

$9\mathrm{.}67$

b$.$

$10\mathrm{.}67$

c$.$

$11\mathrm{.}67$

d$.$

$12\mathrm{.}67$