Q$.22$ Monthly consumption of an item is $350$ units and price per unit is $15.$ Inventory carrying cost is $20$

percent and ordering cost is $40$ per order, lead time of $1$ month's stock. Assuming ROL system,

calculate the following: $($i$)$ Reorder quantity, $($ii$)$ Reordering level, $($iii$)$ Minimum level, $($iv$)$ Maximum

level, $($v$)$ Average inventory