Question $1($a$)$

The following data have been collected for four cost types of Ade Ltd; A$,$ B$,$ C and D at two activity levels for product Alpha.

$\backslash$table$[[$Cost type,Cost at $100$ units,Cost at $140$ units$],[,,10,560],[$A$,8,000,5,000],[$B$,5,000,9,100],[$C$,6,500,8,580],[$D$,6,700,]]$

The cost behaviour patterns of each one of the above costs $($assuming linearity$)$ can either be classified as Variable, Semi$-$Variable or Fixed in relation to the number of units produced.

Required:

$($i$)$ Classify each one of the costs $($A$,$ B$,$ C$,$ D$)$ above in terms of their behaviour patterns $($Variable$,$ Semi$-$Variable, or Fixed$)$ in relation to number of units produced.

$[4$ marks$]$

$($ii$)$ What does the total variable cost per unit amount to for producing and selling one $(1)$ unit of Alpha?

$[2$ marks$]$

$($iii$)$ Calculate the production cost for Ade Ltd if it produces $180$ units of Alpha.

$[6$ marks$]$