A veranda 40 meters long 15 meters broad is to paved with stones each measuring 6 dm by 5 dm. the number of stones required is?

Length = (40 x 10 ) dm = 400 dm. Breadth = (15 x 10 ) dm = 150 dm.Area of veranda = (400 x 150 ) dm² Area of one stone = (6 x 5 ) dm²∴ Required number of stones = (400 x 150) /(6 x 5) = 2000