问题
单项选择题
A $500 investment and a $1, 500 investment have a combined yearly return of 8.5 percent of the total of the two investments. If the $500 investment has a yearly return of 7 percent, what percent yearly return does the $1, 500 investment have ？（）
A.A
B.B
C.C
D.D
E.E
答案
参考答案：A
