Sort by one attribute
Sort objects by colour or shape and spot the one that does not belong to the group. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
Three of these things are the same colour (red). Which one does NOT belong?
- green star
- red star
- red triangle
- red circle
Answer: green star
See one solved, step by step
Three of these things are the same colour (purple). Which one does NOT belong?
- purple square
- purple diamond
- purple triangle
- green square
📘 Worked solution
1purple diamond, purple triangle, purple squareThese three all have the same colour: purple.
2green squareThis one is different — its colour is green, not purple.
3Answer: green squareIt is the one that breaks the pattern the other three share.
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