How many 500x400 pavers are in 10 square meters?

To determine how many 500x400 mm pavers fit into 10 square meters, first convert the dimensions of the paver to meters: 500 mm = 0.5 m and 400 mm = 0.4 m. The area of one paver is 0.5 m * 0.4 m = 0.2 square meters. Therefore, in 10 square meters, you can fit 10 / 0.2 = 50 pavers.