A man has $ 10,000 to invest. he invest $4,000 at 5% and $3500 at 4%. In order to have ayearly incom of $500, he must invest the remainder at:	Choose the correct choice from the following answers
A) 6%
B) 5.4%
C) 6.1%
D) 4.4%
E) 6.4%
income from $4000 at 5% in one year = $4000of 5%= $200, income from $3500 at 4% in one year = $3500 of 4%= $140,total income= $200+$140= $340. Remaining yearly income amount 200+ 140= 
<gadget id="calculator">200+ 140</gadget>
<output>340</output>
$340. Remaining yearly income amount=$500-$340= $160, remaining investamount500- 340= 
<gadget id="calculator">500- 340</gadget>
<output>160</output>
$160, remaining investamount= $10000-($4000+$3500)= $2500, I10000-( 4000+ 3500)= 
<gadget id="calculator">10000-( 4000+ 3500)</gadget>
<output>2_500</output>
$2500, I=PNR. 160=2500 x R x 1year, R= 0.064. therefore answer is: 6.4%, correct answer will be (6.4%)
<result>E</result>
A man has $ 10,000 to invest. he invest $4,000 at 5% and $3500 at 4%. In order to have ayearly incom of $500, he must invest the remainder at: