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Number Series and Pattern Recognition Flashcards

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

Read the first 7 Number Series and Pattern Recognition flashcards as text

  1. What comes next: 1, 2, 4, 7, 11, ___?

    Answer: 16

    The differences increase by 1 each step (1, 2, 3, 4, 5), so 11 + 5 = 16.

  2. Find the missing number: 100, 95, 85, 70, ___?

    Answer: 50

    The differences increase by 5 each step (5, 10, 15, 20), so 70 − 20 = 50.

  3. What is next in the series: 2, 3, 5, 7, 11, 13, ___?

    Answer: 17

    This is the sequence of prime numbers; the next prime after 13 is 17.

  4. Find the next number: 1, 8, 27, 64, ___?

    Answer: 125

    These are perfect cubes (1³, 2³, 3³, 4³), so the next is 5³ = 125.

  5. What comes next: 2, 4, 3, 9, 4, 16, 5, ___?

    Answer: 25

    The sequence alternates between n and n²; after 5 comes 5² = 25.

  6. Find the missing number: 1, 3, 7, 15, 31, ___?

    Answer: 63

    Each term follows the rule ×2 + 1, so 31 × 2 + 1 = 63.

  7. What is next in the series: 6, 12, 10, 20, 18, 36, ___?

    Answer: 34

    The rule alternates between ×2 and −2, so after 36 comes 36 − 2 = 34.