Andre Candess Manages an Office Supply Store

Andre Candess manages an office supply store.One product in the store is computer paper.Andre knows that 10,000 boxes will be sold this year at a constant rate throughout the year.There are 250 working days per year and the lead-time is 3 days.The cost of placing an order is $30,while the holding cost is $15 per box per year.How many units should Andre order each time?

A) 200
B) 400
C) 500
D) 100
E) None of the above