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Each letter coded by a linear function of its position (n + k, 2n, 2n + 1)

This type of question, 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. All 9 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    18 Jul 2023 S1

    23
    In a certain code language, if 'CBVQ' is written as '652520' and 'FRJT' is written as '9211323', how will 'EHLP' be written in the same code language?

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  2. Question 2

    19 Jul 2023 S1

    14
    In a certain code language, 'DESIGN' is coded as 8-10-38-18-14-28 and 'FOREST' is coded as 12-30-36-10-38-40. How will 'PLAYER' be coded in the same language?

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  3. Question 3

    20 Jul 2023 S1

    20
    In a certain code language, if ‘FILM’ is written as ‘9121516’ and ‘EAST’ is written as ‘842223’, how will ‘HOME’ be written in the same code language?

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  4. Question 4

    20 Jul 2023 S3

    15
    In a certain code language, if ‘DGOUT’ is written as ‘25131918’ and ‘RCQFM’ is written as ‘16115411’, how will ‘OVHPI’ be written in the same code language?

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  5. Question 5

    11 Sep 2024 S3

    4
    In a certain code language, ‘MAN’ is coded as ‘15316’ and ‘SHE’ is coded as ‘21107’. How will ‘OUT’ be coded in that language?

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  6. Question 6

    12 Sep 2024 S1

    10
    In a certain code language, 'FIVE' is written as '12184410' and FOUR is written as '12304236'. How will 'THREE' be written in that language?

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  7. Question 7

    23 Sep 2024 S3

    7
    In a certain code language, 'WJSL' is coded as '25-12-21-14' and 'DUOH' is coded as '6-23-17-10'. What is the code for 'PFKR' in the given language?

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  8. Question 8

    25 Sep 2024 S1

    20
    In a certain code language, 'EXCESS' is written as '726572121', 'ENERGY' is written as '716720927', how will 'ESCAPE' be written in that language?

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  9. Question 9

    26 Sep 2025 S3

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

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