Answer
10 years
Work Step by Step
FV = PV (FVFn, i)
47, 347 = 20,000 (FVFn, 9%)
................. 47, 347 ÷ $20,000
..................FVFn, 9% = 2.3674
2.3674 is approximately the future value of 1 invested at 9% for 10 years.
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