Coding and Decoding: Test 2

10 questions · 15 minutes · scoring and calculator rules shown before you begin

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Coding and Decoding Test 2: questions and answers

Take the test first if you want an honest score. The answers and solutions below are folded away until you open them.

  1. 1. In a certain code, GARDEN is written as JDUGHQ. How is MOTHER written in that code?
    1. PRWKHU
    2. JLQEBO
    3. QSXLIV
    4. PRWKUH

    Reference: q-256ec9f7-84 · Report this question

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    Answer: A. PRWKHU

    Each letter is moved 3 places forward in the alphabet, so MOTHER becomes PRWKHU.
  2. 2. If DOCTOR is coded as ROTCOD, how is BRAIN coded?
    1. NAIRB
    2. INARB
    3. NRAIB
    4. NIARB

    Reference: q-d469c153-50 · Report this question

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    Answer: D. NIARB

    The letters of the word are written in reverse order, so BRAIN becomes NIARB.
  3. 3. If A = 1, B = 2, C = 3 and so on up to Z = 26, what is the sum of the values of the letters in the word 'OWL'?
    1. 50
    2. 49
    3. 51
    4. 47

    Reference: q-271ba008-111 · Report this question

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    Answer: A. 50

    O = 15, W = 23, L = 12. Sum = 50.
  4. 4. If MILK is coded as 1391211, how is ACE coded?
    1. 235
    2. 135
    3. 136
    4. 125

    Reference: q-cff244b7-47 · Report this question

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    Answer: B. 135

    Each letter is replaced by its position in the alphabet: A = 1, C = 3, E = 5. So ACE is coded as 135.
  5. 5. In a certain code each letter is replaced by the letter at the same position from the other end of the alphabet (A becomes Z, B becomes Y and so on). How is WINTER written in that code?
    1. CQLFUH
    2. RDMGVI
    3. DRMGVI
    4. ESNHWJ

    Reference: q-900ad7a6-186 · Report this question

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    Answer: C. DRMGVI

    Opposite pairs are A-Z, B-Y, C-X and so on. Replacing each letter gives DRMGVI.
  6. 6. In a certain code, GARDEN is written as JDUGHQ. How is ORANGE written in that code?
    1. RUDQHJ
    2. RUDQJH
    3. SVERKI
    4. LOXKDB

    Reference: q-f0d2187a-84 · Report this question

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    Answer: B. RUDQJH

    Each letter is moved 3 places forward in the alphabet, so ORANGE becomes RUDQJH.
  7. 7. If SMILE is coded as ELIMS, how is BRIDGE coded?
    1. GEDIRB
    2. EDGIRB
    3. EGDIRB
    4. ERIDGB

    Reference: q-3963e438-49 · Report this question

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    Answer: C. EGDIRB

    The letters of the word are written in reverse order, so BRIDGE becomes EGDIRB.
  8. 8. If A = 1, B = 2, C = 3 and so on up to Z = 26, what is the sum of the values of the letters in the word 'BAD'?
    1. 7
    2. 3
    3. 1
    4. 9

    Reference: q-39c1803d-111 · Report this question

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    Answer: A. 7

    B = 2, A = 1, D = 4. Sum = 7.
  9. 9. If PEN is coded as 16514, how is CAB coded?
    1. 412
    2. 313
    3. 312
    4. 302

    Reference: q-83429fe3-44 · Report this question

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    Answer: C. 312

    Each letter is replaced by its position in the alphabet: C = 3, A = 1, B = 2. So CAB is coded as 312.
  10. 10. In a certain code each letter is replaced by the letter at the same position from the other end of the alphabet (A becomes Z, B becomes Y and so on). How is DOG written in that code?
    1. XMU
    2. VKS
    3. WLT
    4. LWT

    Reference: q-cc829ac9-183 · Report this question

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    Answer: C. WLT

    Opposite pairs are A-Z, B-Y, C-X and so on. Replacing each letter gives WLT.

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