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Numerical Series Patterns Flashcards

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

Read the first 7 Numerical Series Patterns flashcards as text

  1. Find the next number: 5, 10, 20, 40, 80, ?

    Answer: 160

    Each term is multiplied by 2, so 80 × 2 = 160.

  2. What comes next in: 50, 47, 44, 41, 38, ?

    Answer: 35

    The series decreases by 3 each time, so 38 − 3 = 35.

  3. Identify the next term: 2, 6, 18, 54, 162, ?

    Answer: 486

    Each term is multiplied by 3, so 162 × 3 = 486.

  4. What is the missing number: 1, 1, 2, 3, 5, 8, 13, ?

    Answer: 21

    This is the Fibonacci sequence where each term is the sum of the two preceding terms: 8 + 13 = 21.

  5. Complete the series: 64, 32, 16, 8, 4, ?

    Answer: 2

    Each term is halved (divided by 2), so 4 ÷ 2 = 2.

  6. Find the next term: 3, 7, 15, 31, 63, ?

    Answer: 127

    Each term is multiplied by 2 and then 1 is added: 63 × 2 + 1 = 127.

  7. What is the next value: 4, 9, 16, 25, 36, ?

    Answer: 49

    These are perfect squares of consecutive integers starting at 2 (2², 3², 4², 5², 6²), so the next is 7² = 49.