John saved $4000 and he invested part of it in his saving account that paid 4% per year and the rest of his saving in stocks that paid 8% per year. The total interest after 1 year became $400 with those investments. How much interest did he invest at each rate?

Answer rating: 100% (QA)

The Total money invested 4000 The Total interest earned after 1 year 400 We then Let The Amount in... View the full answer