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Cognitive Assessment Number Series Problems 1 Flashcards

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

Read the first 6 Cognitive Assessment Number Series Problems 1 flashcards as text
  1. What comes next: 7, 14, 21, 28, 35, ___?

    Answer: 42

    Each term increases by 7 (multiples of 7). 35 + 7 = 42.

  2. What comes next: 1, 8, 27, 64, 125, ___?

    Answer: 216

    Each term is a perfect cube: 1³=1, 2³=8, 3³=27, 4³=64, 5³=125, 6³=216.

  3. What comes next: 2, 3, 5, 7, 11, ___?

    Answer: 13

    This sequence lists prime numbers in ascending order. After 11, the next prime is 13.

  4. What comes next: 1, 3, 6, 10, 15, ___?

    Answer: 21

    The differences between terms increase by 1 each time: +2, +3, +4, +5, +6. So 15 + 6 = 21. These are triangular numbers.

  5. What comes next: 3, 5, 9, 15, 23, ___?

    Answer: 33

    The differences between consecutive terms are 2, 4, 6, 8, 10 — increasing by 2 each time. 23 + 10 = 33.

  6. What comes next: 50, 45, 39, 32, 24, ___?

    Answer: 15

    The amounts subtracted increase by 1 each step: −5, −6, −7, −8, −9. So 24 − 9 = 15.