It is assumed that the question refers to a square that is 50 cm * 50 cm. And likewise with the area to be tiled (otherwise the question becomes trivial).
50 cm *50 cm = 0.5m*0.5m = 0.25 m2
240 m * 240 m = 57600 m2
So the number of tiles needed = 57600/0.25 = 230400 tiles.
That is the mathematical answer and assumes that there are no breakages or other wastage.
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50cm x 50cm tile = 7.24/SF per tile 466/7.24 = 64.36 you would need 65 tiles
firstly, 1 metre is 2 sets of 50cm 2m=4 sets of 50cm 3m=6 sets of 50cm 4m=8 sets of 50cm 5m=10 sets of 50cm 6m=12 sets of 50cm 7m=14 sets of 50cm 8m=16 sets of 50cm 9m=18 sets of 50cm 10m=20 sets of 50cm 11m=22 sets of 50cm 12m=24 sets of 50cm 13m=26 sets of 50cm 14m=28 sets of 50cm 15m=30 sets of 50cm 16m=32 sets of 50cm 17m=34 sets of 50cm 18m=36 sets of 50cm 19m=38 sets of 50cm 20m=40 sets of 50cm 21m=42 sets of 50cm 22m=44 sets of 50cm 23m=46 sets of 50cm 24m=48 sets of 50cm 25m=50 sets of 50cm 26m=52 sets of 50cm 27m=54 sets of 50cm 28m=56 sets of 50cm 29m=58 sets of 50cm 30m=60 sets of 50cm if the measurements are 8 by 30 metres, this means that the area is covered by 16 times 60 amount of tiles which is the amount of 960 tiles altogether Source: A successful Graduate of Cambridge University
150 tiles
16 square tiles
5,184 2-square-inch tiles are needed.