SOLUTION: An investor had a total of 25,000 put into a portfolio of stocks, bonds, and mutual funds. In one year, he earned 8% on the stock investment, 10% on the bond investment and 6% on t

Question 431877: An investor had a total of 25,000 put into a portfolio of stocks, bonds, and mutual funds. In one year, he earned 8% on the stock investment, 10% on the bond investment and 6% on the mutual funds investment. The annual(simple interest) return was $1860. if the amount invested in the mutual fund was twice the investment in bonds, then how much did he originally put in each of the three individual investments?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Bonds ------ $x -------10%
Mutual funds -$2x-------6%
Stock -------(25000-3x)---8%
Interest = 1860
10x+6*2x+8(25000-3x)= 1860*100
10x+12x+200000-24x =186000
-2x=-14,000
x= $7000 ------- Bonds
Mutual funds --- 2x= $14,000
Stocks --------- $4000
CHECK
7000*0.1+14000*0.06+4000*0.08=1860
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