Problem 3 · 2025 Math Kangaroo
Easy
Spatial & Visual Reasoning
sequence-of-figurescube-views
Mia builds a large cube out of small cubes. While she is building it, she takes a photo at five different times. Which of the five photos shown is the fourth?
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Answer: A
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Hint 1 of 2
The photos show the cube growing, so put them in order from fewest cubes to a full cube.
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Hint 2 of 2
Order the five pictures by how complete the cube is, then count to the fourth one.
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Approach: order the photos by how built-up the cube is
- The cube is assembled over time, so the photos go from least built to fully built.
- Arrange the five images by increasing number of small cubes placed.
- The fourth picture in that order is the nearly-complete cube shown in option A.
- So the fourth photo is A.
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