An investment of 4300 was made one year ago.
Part of the investment was placed into an account paying s interest at 6 %
The remainder of the investment was placed into an account paying s interest at 9%
After one year, you received a total of 315 in interest. How much was invested in each account?
Calculate Principal Amounts for each fund:
For Fund 1, we invest an unknown amount, let us call it x
For Fund 2, the remaining principal is 4300 - x
Calculate Interest Credit for Fund 1
Since Fund 1 credits interest using the simple interest method, we have 0.06x
Calculate Interest Credit for Fund 2
Since Fund 2 credits interest using the simple interest method, we have 0.09(4300 - x)
Set up a grid with fund details:
| Interest Paid | Principal | Interest
Rate |
Fund 1 | 0.06x | x | 6 % |
Fund 2 | 0.09(4300 - x) | (4300 - x) | 9% |
Total | 315 | 4300 | -- |
Calculate x from the grid:
Since both Interest paid columns add up to the total interest earned of 315, we set up an equation
0.06x + 0.09(4300 - x) = 315
0.06x + 387 - 0.09x = 315
387 - 0.03x = 315
Subtract 387 from each side:
387 - 387 - 0.03x = 315 - 387
Cancelling the 387 on the left side, we get:
-0.03x = -72
Divide each side by -0.03
Cancelling the -0.03 on the left side, we get:
x = 2400 ← Fund 1 Investment
This means we should 4300 - 2400 = 1900 into Fund 2
Final Answer
2400 into Fund 1
1900 into Fund 2
You have 2 free calculationss remaining
What is the Answer?
2400 into Fund 1
1900 into Fund 2
How does the Split Fund Interest Calculator work?
Free Split Fund Interest Calculator - Given an initial principal amount, interest rate on Fund 1, interest rate on Fund 2, and a total interest paid, calculates the amount invested in each fund.
This calculator has 4 inputs.
What 3 formulas are used for the Split Fund Interest Calculator?
Fund 1 investment is x
Fund 2 investment is T - x
Interest paid = Interest Rate * Investment
For more math formulas, check out our
Formula Dossier
What 3 concepts are covered in the Split Fund Interest Calculator?
- interest
- payment from a borrower or deposit-taking financial institution to a lender or depositor of an amount above repayment of the principal sum, at a particular rate
- principal
- The amount borrowed on a loan, before interest is charged
- split fund interest
Example calculations for the Split Fund Interest Calculator
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