An investor invested some money in 2 separate schemes: A and B. Scheme A will yield 30% of the capital within a year, and scheme B will yield 50% of the capital within a year. If he invested $300 in scheme A and $200 in B, how much more money will he have in scheme A than in B after a year, provided he does not withdraw anything?
After a year, scheme A will yield 30% of his capital which is (30/100)*$300 = $
<gadget id="calculator">30/100*300</gadget>
<output>90</output>
90.
In addition to his capital, he will have $90+$300 = $
<gadget id="calculator">90+300</gadget>
<output>390</output>
390 in scheme A.
After a year, scheme B will yield 50% of his capital which is (50/100)*$200 = $
<gadget id="calculator">50*.01*200</gadget>
<output>100</output>
100.
In addition to his capital, he will have $100+$200 = $
<gadget id="calculator">100+200</gadget>
<output>300</output>
300 in scheme B.
After a year, he will have $390-$300 = $
<gadget id="calculator">390-300</gadget>
<output>90</output>
90 in scheme A more than in scheme B.

<result>90</result>