Practice Lab · Quantitative reasoning
Quantitative reasoning Short quantitative puzzles that teach the underlying arithmetic rule.
Practice Lab is an entertainment and educational activity. It is not a clinical, diagnostic, standardized, or professionally recognized intelligence assessment. Practice items never count as unseen scored Novus Reasoning Challenge form questions. Your practice results are not an IQ score and cannot be used for Mensa qualification, diagnosis, giftedness identification, educational placement, employment selection, disability applications, accommodations, legal matters, or medical decisions.
Untimed instructional practice for the Novus Reasoning Challenge. Explanations teach the reasoning process. These items are not unseen scored-form questions and do not produce an IQ score.
1. 12% of 50 is? 5 6 8 12
2. Ratio 2:3 of 20 parts → first share? 8 10 12 6
3. Mean of 2,4,6,8? 20 4 6 5
4. Median of 1,3,100? 34 1 100 3
5. If 3x=15, x=? 5 3 15 45
6. Area rectangle 4×7? 11 28 22 14
7. Perimeter square side 5? 20 25 10 15
8. Half of one-third of 90? 15 30 45 10
9. Speed 60 km/h for 2.5 h → distance? 120 150 90 180
10. Probability fair coin heads twice? 1 1/2 1/3 1/4
11. Simple interest: 100 at 5% for 2 years? 5 10 15 110
12. Convert 0.75 to percent? 0.75% 7.5% 75% 750%
13. LCM of 4 and 6? 2 24 8 12
14. GCD of 12 and 18? 9 3 6 12
15. 3² + 4² = ? 7 12 25 49
16. If y doubles when x doubles and y=4 at x=2, y at x=6? 6 8 12 24
17. Discount 20% off 80? 64 60 70 16
18. Mixture: 2 L of 10% + 2 L of 30% → %? 25% 40% 10% 20%
19. Work: A does job in 4 h, B in 4 h together? 4 h 2 h 8 h 1 h
20. Sequence sum 1+2+…+10? 50 45 55 100
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