Practice Test GeeksPI - Cognitive Assessment Practice Test
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Number Series Problems Flashcards

7 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 7 Number Series Problems flashcards as text

  1. What comes next in the series: 3, 6, 12, 24, 48, ___?

    Answer: 96

    Each term is multiplied by 2, so 48 × 2 = 96.

  2. Find the missing number: 81, 27, 9, 3, ___

    Answer: 1

    Each term is divided by 3, so 3 ÷ 3 = 1.

  3. What is the next term: 2, 5, 10, 17, 26, ___?

    Answer: 37

    The differences are 3, 5, 7, 9, 11 — odd numbers increasing by 2, so 26 + 11 = 37.

  4. Complete the series: 1, 1, 2, 3, 5, 8, ___

    Answer: 13

    Each term equals the sum of the two preceding terms (Fibonacci), so 5 + 8 = 13.

  5. What comes next: 100, 90, 81, 73, 66, ___?

    Answer: 60

    The differences are 10, 9, 8, 7, 6 — decreasing by 1 each time, so 66 − 6 = 60.

  6. Find the missing value: 7, 14, 28, ___, 112

    Answer: 56

    Each term doubles, so 28 × 2 = 56, and 56 × 2 = 112 confirms the pattern.

  7. What is the next number: 3, 9, 27, 81, ___?

    Answer: 243

    Each term is multiplied by 3 (powers of 3), so 81 × 3 = 243.