Practice Test GeeksGCAT - General Cognitive Ability Test Practice Test
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Number and Letter Sequences 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 Number and Letter Sequences flashcards as text

  1. What number is next? 3, 9, 27, 81, ___

    Answer: 243

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

  2. Which letter continues? C, F, I, L, O, ___

    Answer: R

    Each letter advances 3 positions, so O + 3 = R.

  3. What is missing? 50, 44, 38, 32, ___, 20

    Answer: 26

    Each term decreases by 6, so 32 − 6 = 26.

  4. Complete this alternating sequence: 2, A, 4, C, 6, E, 8, ___

    Answer: G

    The letters follow every other letter of the alphabet (A, C, E, G…), so the next letter is G.

  5. What number comes next? 1, 2, 4, 7, 11, 16, ___

    Answer: 22

    Differences increase by 1 each step (+1,+2,+3,+4,+5,+6), so 16 + 6 = 22.

  6. Which pair comes next? AA, CC, EE, GG, ___

    Answer: II

    Each pair skips one letter (+2 positions), so after GG comes II.

  7. What is the next number? 1000, 500, 250, 125, ___

    Answer: 62.5

    Each term is halved, so 125 ÷ 2 = 62.5.