Answer:
11%
Step-by-step explanation:
The computation of the annual rate of return is shown below:
Annual rate of return = Average annual income ÷average investment
where,
Average investment = (Initial investment + Salvage value) ÷ 2
= ($284,000 + $74,000) ÷ 2
= $179,000
And,
Average annual income is
= $60,490 - $40,800
= $19,690
So, the annual rate of return is
= $19,690 ÷ $179,000
= 11%
We simply applied the above formula