Try Again

Every tricky question is a chance to learn a smarter way.

Red and blue counters are in the ratio 3:5. There are 32 counters altogether. How many are red?

Your answer: 15 · Correct answer: 12

Mathematical Reasoning

The pattern is 5, 9, 17, 33, ... What comes next?

Your answer: 57 · Correct answer: 65

Mathematical Reasoning

All flims are blats. No blats are green. Which statement must be true?

Your answer: Some flims are green · Correct answer: No flims are green

Thinking Skills

Which item does not belong with the others?

Your answer: atlas · Correct answer: thermometer

Thinking Skills