Question $20(1$ point$)$

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A supermarket, which sells $($among other things$)$ USB sticks, knows that the annual demand for the USB sticks is constant at $5000$ units$/$year at the selling price $($to end customers$)$ of $$15/$unit$.$ These USB sticks are obtained only from one supplier, who charges a delivery fee of $$50$ for each order, regardless of the quantity delivered. The annual interest rate is $10\%.$

The supplier charges $$10/$unit for $0-999$ units ordered, but is willing to give a discount of $5\%$ per unit for orders between $1000-1999$ units and a discount of $10\%$ per unit for orders of $2000$ units and above.

Which inventory control model should be used for the management of the above inventory system?

EOQ

EPQ

Quantity Discount

Re$-$Ordering Point Model