A year ago Mr. Smith purchased as business investment, properties in two areas of rapid development. Four times the amount he invested in area one, is $300 less than twice investment in area two. If he sold the property in both areas today, he would have a gain of $5100 representing a 175% profit on the investment in Area one & 250% profit on the investment in Area two. How much did he invest in each area?
Let x = capital in area one
y = capital in area two
1.75x= income from capital in Area one at 175% profit.
2.50y = income from capital in Area two at 250% profit

Question

A year ago Mr. Smith purchased as business investment, properties in two areas of rapid development. Four times the amount he invested in area one, is $300 less than twice investment in area two. If he sold the property in both areas today, he would have a gain of $5100 representing a 175% profit on the investment in Area one & 250% profit on the investment in Area two. How much did he invest in each area?
Let x = capital in area one
      y = capital in area two
1.75x= income from capital in Area one at 175% profit.
2.50y = income from capital in Area two at 250% profit