Answer:
21.26%
Step-by-step explanation:
Overall rate of return = Total amount of dollar returns / Total investment
Overall rate of return = [($18,000 * 26%) + ($22,000 * 15%) + ($70,000 * 22%)] / $110,000
Overall rate of return = ($4680 + $3300 + $15400) / $110,000
Overall rate of return = $23,380 / $110,000
Overall rate of return = 0.21255
Overall rate of return = 21.26%