Future Value

[ChiCHi]

Future Value. What is the future value of $773 invested for 14 years at 11 percent compounded annually? The answer I got was $ 3,331.97

Present Value. What is the present value of $803 to be received 10 years from now at a 15 percent discount rate? The answer I got was $ 3,249

Future Value of an Annuity. What is the future value of $557 a year for 14 years at 5 percent compounded annually? Answer I got was $ 1,102.82

Present Value of an Annuity. What is the present value of $1,163 a year for 15 years at an 8 percent discount rate? The answer I got was 366.63

How many years will it take to grow $711 to a value of 2,028.19 at a compound rate of 14 percent? The answer I got was 2.29

Interest Rate. At what interest rate will it take to grow $759 to a value of 1,017.13 over 6 years? The answer I got was 1.30


Annuity. How many years will it take for a payment of $825 to grow to 17,642.03 at a compound rate of 10 percent? The answer I got was 11.33

Annuity. At what interest rate will a payment of $346 grow to 12,898.78 over a period of 15 years? The answer I got was 14.19


I am trying to figure out how to solve these. I have taken 1 example from each topic so I can see how it's calculated then I can do the rest. I have supplied the answers I got and if they are right then I know what I am doing if not then any help solving them would be great.

 

[Denis]

Interest Rate. At what interest rate will it take to grow $759 to a value of 1,017.13 over 6 years? The answer I got was 1.30

I looked at last 4: all VERY wrong; perhaps you're simply doing one thing wrong, but we can't tell
if you don't show HOW you got your answers.

Ax example, the one above works like this:
r = rate
759(1 + r)^6 = 1017.13 ; is that what you were doing?
(1 + r)^6 = 1017.13 / 759
1 + r = (1017.13 / 759)^(1/6)
r = (1017.13 / 759)^(1/6) - 1

r = 1.04999955... - 1
r = .04999955... ; that's 5% rounded

Did you follow all that?