Question $5$:$$In a retail shop, the$$annual$$demand for a product is $100000$ units. The ordering cost per order $($irrespective of the order size$)$ is $$10$ per order.$$ The handling $($carrying$)$ cost for a unit is $$2\mathrm{.}4$ per unit per year. If the assumptions of Economic Order Quantity inventory model are valid, then answer the following problems: $(10$ points$)$