top of a square table is covered with four equal square tiles
Now it says
the side length of each tile is decreased by 50%
It means if the four equal square tiles had side =2x
Now its x
It means if earlier area was 4x^2 not the area is x^2
It means we have to use 4 small tiles to make one large tile
and to make 4 large tiles , we need 4*4 = 16 small tiles.
16 tiles of the new size would be needed to cover the same table.
