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Mensa IQ Numerical Pattern Recognition Questions and Answers Flashcards

6 cards from real MENSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Mensa IQ Numerical Pattern Recognition Questions and Answers flashcards as text

  1. What is the missing number? 2, 6, 12, 20, 30, ?

    Answer: 42

    Differences: 4, 6, 8, 10, 12. The pattern is consecutive even differences. 30+12=42.

  2. Find the missing number: 1, 4, 9, 16, 25, ?, 49

    Answer: 36

    These are perfect squares: 1²=1, 2²=4, 3²=9, 4²=16, 5²=25, 6²=36, 7²=49.

  3. What replaces the ? [Row 1: 3, 5, 8] [Row 2: 4, 7, 11] [Row 3: 6, 9, ?]

    Answer: 15

    In each row, the third number equals the first plus the second. Row 3: 6+9=15.

  4. Which number does not belong in this series? 2, 3, 5, 7, 11, 14, 13, 17

    Answer: 14

    All other numbers are prime. 14 = 2×7, so it is composite and does not belong.

  5. Identify the rule and find the next term: 100, 50, 25, 12.5, ?

    Answer: 6.25

    Each term is halved: 100÷2=50, 50÷2=25, 25÷2=12.5, 12.5÷2=6.25.

  6. What is the missing number in this sequence? 0, 1, 3, 6, 10, 15, ?

    Answer: 21

    These are triangular numbers. Differences: 1, 2, 3, 4, 5, 6. Next: 15+6=21.