Answer: 7.86%
Step-by-step explanation:
Using the Future Value formula;
= Amount * ( 1 + r)^n
The question is looking for the rate so making that the subject would be;
Assuming the car was $1 in 1893,
And n = 2009 - 1893 = 116 years
FV = Amount * ( 1 + r)^n
( 1 + r)^n = FV/ Amount
1 ^n + r^n = FV / Amount
r = nā((FV/ Amount) / 1^n)
r = nā(FV/ Amount)
r = 116ā(6,450/ 1)
= 1.07855
Subtract 1 for the percentage;
= 1.07855 - 1
= 7.86%