Independent solution

How to solve this Reinvestment of Loan Payments question

Setup

Setup

Determine the level annual payment from the lender's 8% loan valuation.

P=10000a100.08=1490.29P=\frac{10000}{a_{\overline{10}|0.08}}=1490.29

Model

Model

Each payment is deposited when received, so the time-10 reinvestment value is an annuity-immediate accumulated at 10%.

F10=1490.29s100.10F_{10}=1490.29s_{\overline{10}|0.10}

Compute

Compute

The reinvestment account reaches 23,751.46. Subtract the lender's original 10,000 outlay to measure total interest earned.

F10=23751.46F_{10}=23751.46
I=23751.4610000=13751.46I=23751.46-10000=13751.46

Answer

Answer

Total interest rounds to 13,751, which is choice C.

I13751(C)\boxed{I\approx13751\quad\text{(C)}}

Calculator reproduction

BA II Plus keystrokes

Check END/BGN, period, sign, TVM, and cash-flow setup

  1. 2ND · CLR TVMTVM worksheet clearedUse END mode and annual periods.
  2. 10 · NN = 10
  3. 8 · I/YI/Y = 8
  4. 10000 · PVPV = 10,000
  5. 0 · FVFV = 0
  6. CPT · PMTPMT = -1,490.29
  7. 10 · I/Y · 0 · PV · 1490.2949 · +/- · PMT · CPT · FVFV = 23,751.46Revalue the received end-of-year payments at 10%.