Advantage Production has a policy of having sufficient directmaterials inventory

Advantage Production has a policy of having sufficient directmaterials inventory on hand at the end of each month equal to 25%of next months budgeted production needs. The company has budgetedproduction of 12000 clipboards in June and 15000 units in July.It takes 1.5 pounds of resin to produce one clipboard and 4500pounds of resin were on hand on May 31. How many pounds of resinshould be purchased in the month of June?