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Numerical Reasoning and Number Patterns Flashcards

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

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  1. A pattern adds 7 each time. If the 3rd term is 22, what is the 1st term?

    Answer: 8

    Working backwards: 22 − 7 = 15, then 15 − 7 = 8.

  2. What is the rule for the sequence: 100, 50, 25, 12.5?

    Answer: Divide by 2

    Each term is divided by 2 (or multiplied by 0.5).

  3. If the pattern is × 3 − 1, what comes after 14?

    Answer: 41

    14 × 3 = 42, then 42 − 1 = 41.

  4. What is the 8th term in the sequence 5, 9, 13, 17...?

    Answer: 35

    The rule is add 4 each time; the 8th term is 5 + 4 × 7 = 5 + 28 = 33... wait: 5+(7×4)=5+28=33.

  5. In a number pattern, the rule is 'double and add 3'. Starting at 2, what is the 4th term?

    Answer: 37

    2 → 7 → 17 → 37 (each step: × 2 + 3).

  6. What is the sum of the first 5 terms of the sequence 4, 8, 12, 16, 20?

    Answer: 60

    4 + 8 + 12 + 16 + 20 = 60.

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