An investor receives a total combined return of 7% on his two different investments. On his $10,000 investment he receives a return of 6%. What is the return on his $20,000 investment?  Choose the correct choice from the following:
A) 7.25%
B) 7.5%
C) 8%
D) 8.5%
E) 9%
Total investment = $30000   on which he receives 7% = 2100   now,   on his $10000 he receives 6% = $600   remaining $1500   which is (1500/20000)*100= 
<gadget id="calculator">(1500/20000)*100</gadget>
<output>15/2 = around 7.5</output>
7.5   ANSWER:7.5%
<result>B</result>
An investor receives a total combined return of 7% on his two different investments. On his $10,000 investment he receives a return of 6%. What is the return on his $20,000 investment?