Well first think how many pounds are 1 ton? but here it is 1 ton = 2,000 pounds so they literally need 6,000 pounds of flour:/ now we gotta divide 6,000 by 5 6,000/5 = 1,200 we now have to divide that number by 12 :) 1,200/12 = 100 they would need 100 boxes!! hope this helps chu