Problem 17 · 2020 Math Kangaroo
Stretch
Logic & Word Problems
caseworkcareful-counting
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Answer: E
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Hint 1 of 2
Each row and each column must use all three shapes and all three amounts.
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Hint 2 of 2
See which shape and which amount are still missing in the colored cell's row and column.
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Approach: Latin-square style elimination
- Every row and column needs the three different shapes and the three different dot-counts.
- Look at the colored cell's row and column to see which shape and which amount are not yet present there.
- The missing combination matches card E.
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