SOLUTION: A trust fund of $45,000 was divided into three parts in the ration of 2:3:4, and the parts were invested at 4%, 5% and 6% annual rates of simple interest, respectively. How much to

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Question 247844: A trust fund of $45,000 was divided into three parts in the ration of 2:3:4, and the parts were invested at 4%, 5% and 6% annual rates of simple interest, respectively. How much total interest income did the money earn after one year?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
2+3+4=9 units.
2x+3x+4x=45,000
9x=45,000
x=45,000/9
x=$5,000 per unit.
2*5,000=10,000
3*5,000=15,000
4*5,000=20,000
Proof
10,000+15,000+20,000=45,000
10,000*.04+15,000*05+20,000*.06
400+750+1,200=$2,350 total interest.