When an amount 'P' is invested for 'n' equal interest periods with 'i' as the interest rate, the future value of the investment 

What is the present value of a future payment of Rs 100000 due 10 years from now, if the nominal interest rate is 6%?

What will be the future amount of a uniform payment of Rs 500 deposited at the end of each year with an interest rate of 9 percent per annum, at the end of  6 years?

If $A=F\left[\frac{i}{{\left(1+i\right)}^n-1}\right]$ ,in this equation $\frac{i}{{\left(1+i\right)}^n-1}$ is known as

A proposed solar PV street light will cost Rs 10,000 and last for 20 years. The savings of electricity bill is estimated as Rs 900 per year. What is the simple payback period of the proposal?