After a year, scheme A will yield 30% of his capital which is (30/100)*$300 = $<<30/100*300=90>>90
In addition to his capital, he will have $90+$300 = $<<90+300=390>>390 in scheme A
After a year, scheme B will yield 50% of his capital which is (50/100)*$200 = $<<50*.01*200=100>>100
In addition to his capital, he will have $100+$200 = $<<100+200=300>>300 in scheme B
After a year, he will have $390-$300 = $<<390-300=90>>90 in scheme A more than in scheme B
#### 90