Two energy conservation projects have been proposed. For the first project, For the

first project, a capital investment of Rs$.150,000$ is required and the net annual saving is

Rs$.50,000$ each year for $5$ year and Zero salvage value at the end of $5$ years.

For the second project, capital investment of Rs$.150,000$ is required and yields annual

saving is Rs$\mathrm{.}50,000$ for first $2$ years each and Rs$.60,000$ for next $3$ years each. The

salvage value at the end of $5$ years is Rs$.10,000.$ Compute:

a$)$ Net present value for both the projects with discount rate of $9\%$

b$)$ Profitability index for both the projects with discount rate of $9\%$

c$)$ Internal Rate of return for both projects

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