Question $6$ Cost Benefit Analysis

$($a$)$ Using the table below calculate:

$($i$)$ The present value $($PV$)$ of costs at time zero

$($ii$)$ The present value $($PV$)$ of net benefits at time zero

$($iii$)$ The benefit cost ratio at time zero

$\backslash$table$[[$Year$,\backslash$table$[[$Costs$],[(m)$