A firm is currently using a machine that was purchased two years ago for Rs$.70,000$ and has a remaining useful life of $5$ years. It is considered to replace the machine with a new one which will cost Rs$.1,40,000.$ The cost of installation will amount to Rs$.10,000.$ The increase in working capital will be Rs$.20,000.$ The expected cash lows before depreciation and taxes for both machines are as follows: Year Existing Machine New Machine $1$ Rs$.30,000$ Rs$.50,0002$ Rs$.30,000$ Rs$.60,0003$ Rs$.30,000$ Rs$.70,0004$ Rs$.30,000$ Rs$.90,0005$ Rs$.30,000$ Rs$.1,00,000$ The firm uses the Straight$-$Line Method of depreciation. The average tax on income, as well as on capital gains$/$losses$,$ is $40\%.$ Calculate the incremental cash flows assuming the sale value of the existing machine: $($i$)$ Rs$.80,000,($ii$)$ Rs$.60,000,($iii$)$ Rs$.50\mathrm{.}000,$ and $($iv$)$ Rs$.30,000.$