Skip to content / Đến nội dung
ThichHocToan.com

BEBRAS 2021 Grade 7-8 Round 2 Ext Question 15

BEBRAS · BEBRAS 2021 Grade 7-8 Round 2 Ext

Question 15

A beaver plants 16 trees, four of each of four different heights, in a 4×4 garden. Each row and column contains each height exactly once.

Question illustration

A sign on a side states how many trees are visible along that row or column: a taller tree hides shorter trees behind it. Here is an example with a side view.

Question illustration

The actual clues and positions A,B,C,D are below.

Question illustration

Which pictured list gives the trees at A,B,C,D, in that order?

Question illustration
  1. Figure A
  2. Figure B
  3. Figure C
  4. Figure D