Question 69656
165,000*.115=18975
85,000*.2275=19,337.5
235,000*.1025=24,087.5 NOW THE TOTAL INVESTMENT IS 165,000+85,000+235,000=485,000 AND THE RETURS ARE 
18,975+19,337.5+24,087.5=62,400 THUS THE OVERALL PERCENTAGE IS
62,400/485,000=.1286 OR 
B)12.9% ANSWER