Math Wizards at Work





Bricks & Mortar




            At a construction site two masons were building brick walls.  Each wall of bricks requires 10 pounds of mortar.  While building the wall a little of the mortar is left over.  After four walls are built there is enough mortar to build another wall.  If the masons start the day with 160 pounds of mortar, how many walls can be built?






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