SOLUTION: Marko invested $300 000 in stocks, bonds and a savings account at the rates shown on the right. (stocks=15%, bonds=10%, savings=4%). He invested 4 times as much in stocks as he inv

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Question 903282: Marko invested $300 000 in stocks, bonds and a savings account at the rates shown on the right. (stocks=15%, bonds=10%, savings=4%). He invested 4 times as much in stocks as he invested in the savings account. After one year, he earned $35 600 in interest. How much money did he put into each type of investment?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
s+b+a=300000,
0.15*s+0.10*b+0.04*a=35600,
s=4a
a=40000., b=100000., s=160000.