Problem $12-16($Algo$)$ Net Present Value Analysis $[$L$012-2]$

Windhoek Mines, Limited, of Namibia, is contemplating the purchase of equipment to exploit a mineral deposit on land to which the company has mineral rights. An engineering and cost analysis has been made, and it is expected that the following cash flows would be associated with opening and operating a mine in the area:

$\backslash$table$[[$Cost of new equipment and timbers,$$420,000$