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BEBRAS 2021 Grade 9-10 Round 2 Ext Question 9

BEBRAS · BEBRAS 2021 Grade 9-10 Round 2 Ext

Question 9

The letters I,T,O,C,L are represented by these 3 × 3 black-white grids.

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To encode one letter, at each cell count how many of the other four letters have the same color at that position. For example I is encoded as follows.

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Which letter gives this numeric table?

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  1. T
  2. O
  3. C
  4. L