Sort by two attributes (Carroll diagram)
Sort a set of shapes by two attributes (colour and shape) at once, and read counts the way a Carroll diagram would show them. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
Here are 6 shapes: yellow square, blue square, purple star, yellow square, purple square, yellow triangle. How many of them are neither blue nor a square?
Answer: 2
See one solved, step by step
Here are 8 shapes: blue hexagon, red star, red hexagon, purple triangle, purple triangle, purple square, red square, yellow triangle. How many of them are neither yellow nor a triangle?
📘 Worked solution
1Shapes that match: blue hexagon, red star, red hexagon, purple square, red squareGo through the list one at a time and keep only the ones that fit the rule: neither yellow nor a triangle.
2Answer: 5Count how many shapes made it onto that list.
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