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BEBRAS 2021 Grade 9-10 Round 2 Ext Question 15

BEBRAS · BEBRAS 2021 Grade 9-10 Round 2 Ext

Question 15

There are 16 trees of four different heights, four of each type.

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Plant them in a 4 × 4 garden with each type exactly once in every row and column. An outside clue counts visible trees from that direction; a taller tree hides shorter trees behind it. This example illustrates the rule.

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Use the clues of this garden.

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Which choice gives the tree types at A,B,C,D in that order?

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  1. Choice A
  2. Choice B
  3. Choice C
  4. Choice D