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Coding-Decoding

SSC CGL Reasoning. Try each one first, then open its answer.

Top 10 SSC CGL PYQs to practise first

The questions and kinds of question asked most often come first. Each one says how often and in which papers.

  1. Question 1

    This type asked 32 times: 3 in 2023, 6 in 2024, 23 in 2025. This one: 26 Sep 2025 S2 See all 32 of this type

    24
    If in a code language, MOBILITY is written as NPCJMJUZ, how is EXAMPLE written in that code?

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  2. Question 2

    Asked 20 times: 8 in 2023, 12 in 2024 (numbers or wording changed in some) See all 20 times it was asked

    8
    In a certain code language, ‘FRAMED’ is coded as ‘497621’ and ‘DREAMT’ is coded as ‘769542’. What is the code for ‘T’ in that language?

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  3. Question 3

    This type asked 15 times: 14 Jul 2023 S1, 14 Jul 2023 S4, 19 Jul 2023 S4, 20 Jul 2023 S3, 21 Jul 2023 S2, 25 Jul 2023 S3, 25 Jul 2023 S4, 27 Jul 2023 S2, 9 Sep 2024 S1, 10 Sep 2024 S1, 11 Sep 2024 S2, 17 Sep 2024 S3, 19 Sep 2024 S1, 19 Sep 2024 S2, 25 Sep 2024 S3. This one: 25 Sep 2024 S3 See all 15 of this type

    12
    In a certain code language, 'CASE' is written as 'FTBD' and 'CAKE' is written as 'FLBD'. How will 'CALF’ be written in that language?

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  4. Question 4

    This type asked 13 times: 9 Sep 2024 S1, 9 Sep 2024 S2, 10 Sep 2024 S1, 10 Sep 2024 S3, 12 Sep 2024 S2, 13 Sep 2024 S1, 18 Sep 2024 S1, 18 Sep 2024 S2, 19 Sep 2024 S2, 23 Sep 2024 S3, 26 Sep 2024 S2, 26 Sep 2024 S3, 24 Sep 2025 S2. This one: 24 Sep 2025 S2 See all 13 of this type

    19
    Instruction: In a language, if ‘red green blue’ is coded as ‘ka ta na’, ‘blue white black’ as ‘na ja sa’, and ‘white red’ as ‘ja ka’, Question: what is the code for ‘green’?

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  5. Question 5

    Asked 11 times: 19 Sep 2025 S2*, 20 Sep 2025 S1*, 21 Sep 2025 S1*, 21 Sep 2025 S3*, 22 Sep 2025 S1*, 22 Sep 2025 S3*, 23 Sep 2025 S1*, 23 Sep 2025 S3*, 24 Sep 2025 S2*, 24 Sep 2025 S3*, 26 Sep 2025 S2 (* = numbers or wording changed that year) See all 11 times it was asked

    23
    If BRIDGE is coded as CSJEHF, how is CSJEHF coded?

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  6. Question 6

    This type asked 11 times: 20 Jul 2023 S3, 11 Sep 2024 S3, 12 Sep 2024 S3, 24 Sep 2024 S1, 19 Sep 2025 S3, 20 Sep 2025 S1, 22 Sep 2025 S1, 22 Sep 2025 S3, 23 Sep 2025 S1, 23 Sep 2025 S3, 26 Sep 2025 S3. This one: 26 Sep 2025 S3 See all 11 of this type

    20
    If MAP is coded as 13116, what is the code for LAP?

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  7. Question 7

    This type asked 11 times: 17 Jul 2023 S3, 21 Jul 2023 S4, 24 Jul 2023 S1, 26 Jul 2023 S1, 26 Jul 2023 S4, 27 Jul 2023 S2, 27 Jul 2023 S3, 12 Sep 2024 S1, 12 Sep 2024 S3, 18 Sep 2024 S1, 23 Sep 2024 S1. This one: 23 Sep 2024 S1 See all 11 of this type

    5
    In a certain code language, 'RADIO' is written as 'SZEHP' and 'FREQUENCY' is written as 'GQFPVDOBZ'. How will 'TELEVISION' be written in that language?

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  8. Question 8

    This type asked 10 times: 14 Jul 2023 S1, 18 Jul 2023 S2, 19 Jul 2023 S2, 20 Jul 2023 S1, 20 Jul 2023 S4, 21 Jul 2023 S3, 25 Jul 2023 S1, 13 Sep 2024 S3, 17 Sep 2024 S1, 24 Sep 2024 S2. This one: 24 Sep 2024 S2 See all 10 of this type

    20
    In a certain code language, ‘IFF’ is coded as ‘21’ and ‘ARB’ is coded as ‘21’. How will ‘CAW’ be coded in that language?

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  9. Question 9

    This type asked 9 times: 18 Jul 2023 S1, 19 Jul 2023 S1, 20 Jul 2023 S1, 20 Jul 2023 S3, 11 Sep 2024 S3, 12 Sep 2024 S1, 23 Sep 2024 S3, 25 Sep 2024 S1, 26 Sep 2025 S3. This one: 26 Sep 2025 S3 See all 9 of this type

    5
    If H = 17, I = 19, J = 21, then M = ?

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  10. Question 10

    This type asked 9 times: 19 Jul 2023 S1, 21 Jul 2023 S4, 24 Jul 2023 S4, 12 Sep 2025 S3, 14 Sep 2025 S2, 18 Sep 2025 S1, 23 Sep 2025 S2, 24 Sep 2025 S1, 24 Sep 2025 S3. This one: 24 Sep 2025 S3 See all 9 of this type

    9
    In a certain code language, 'stop cool cream brick' is coded as 'at bt ct mt', 'through truck cool' is coded as 'vt kt at' and 'brick clear truck' is coded as 'ct ot kt'. How will 'stop clear cream' be coded in the same language?

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