Question 1163618
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If you are going to take the time to request help on a problem, then take the time to look at your post before you post it.  If you don't post it correctly, you are wasting both your time and ours.<br>
$1200 interest on an investment at 12% means the amount invested is $10,000.  But you say the total amount invested is $3500.<br>
Clearly not possible....<br>