Answer:
18%
Step-by-step explanation:
Average rate of return= Average net income/Average investment ×100/1
Average net income= $216,000/4
= $54,000
Average investment= $600,000/2
= $300,000
Therefore, the average rate of return is calculated as follows.
= $54,000/$300,000 ×100/1
= 0.18×100
=18%
Hence the average rate of return is 18%