Problem 11 · 2016 Math Kangaroo
Stretch
Spatial & Visual Reasoning
path-tracing
Gerda walks along the road and writes down the letters she can see on her right-hand side. Which word is formed while Gerda walks from point 1 to point 2?
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Answer: A — KNAO
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Hint 1 of 2
Walk from point 1 toward point 2 and only write a letter when it is on Gerda's right.
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Hint 2 of 2
Read off the right-hand letters in the order she passes them.
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Approach: record only the right-side letters along the route
- Walk Gerda's path from point 1 to point 2 and look at each sign — write it down only when it is on her right-hand side.
- In the order she passes them, the right-side letters are K, N, A, O.
- So the word formed is KNAO, which is option A.
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