Techzone sells a brand of electronics items consisting of laptops and mobile phones. It costs the firm

$$725$ each time it places an order with the manufacturer for these electronic items. The cost of carrying one

electronic in inventory for a year is $$230.$The store manager estimates that total annual demand for

electronics items will be $2500$ units, with a constant demand rate throughout the year. Order are received

within minutes from the local warehouses maintained by the manufacturer. The store policy is never to

have stockouts of the any electronics items. The store is open for business every day of the year except

Christmas Day. Determine the following:

$)$ Optimal order $($ii$)$ Minimum quarntity per order total annual inventory costs $($iti$)$The number of orders per year $($iv$)$The time between orders $($in working days$)$