Problem 7 · 2020 Math Kangaroo
Medium
Fractions, Decimals & Percents
area-fraction
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Answer: C
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Hint 1 of 2
Three quarters painted means exactly 3 out of every 4 little squares are colored.
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Hint 2 of 2
Count colored squares versus total squares on each tray — one tray is off.
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Approach: check the painted fraction on each tray
- For each tray, count the coloured squares and the total squares and compare with three quarters.
- Trays A, B, D and E each have exactly 3 out of every 4 squares coloured, but tray C has only 5 of its 10 squares coloured (one half), so child C was wrong.
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