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2023 Beaver Computing Challenge
(Grade 9 & 10)

Questions

Part A

Photo

Story

A beaver took a photo looking directly down the centre of an arrangement of four logs assembled as shown.

Four logs are placed with their bases in a circle and their tops leaned in to meet at a point. There is a green log, then moving clockwise around the circle, there is an orange log, then a white log, then a brown log, and then back to the original green log.

Question

Which of the following could be the beaver’s photo?


  1. A top view of the logs. The log at the top of the photo is orange, then moving clockwise around the circle, there is a brown log, then a green log, then a white log, then back to the top orange log.

  2. A top view of the logs. The log at the top of the photo is green, then moving clockwise around the circle, there is an orange log, then a brown log, then a white log, then back to the top green log.

  3. A top view of the logs. The log at the top of the photo is orange, then moving clockwise around the circle, there is a green log, then a white log, then a brown log, then back to the top orange log.