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CAT 2005 | Question: 30

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A rectangular floor is fully covered with square tiles of identical size. The tiles on the edges are white and the tiles in the interior are red. The number of white tiles is the same as the number of red tiles. A possible value of the number of tiles along one edge of the floor is

  1. $10$
  2. $12$
  3. $14$
  4. $16$
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i think ans has to be 16

as all the tiles are squre identical size
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