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Coding and Decoding · Question 1 of 66

Question 1

EasyOriginal question

In a certain code, MONDAY is written as NPOEBZ. How is FRIDAY written in that code?

Options for question 1

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Compare the two words letter by letter: M to N, O to P, N to O, D to E, A to B, Y to Z.

  2. Every letter has moved forward one place in the alphabet.

  3. Apply the same rule to FRIDAY: F becomes G, R becomes S, I becomes J, D becomes E, A becomes B, Y becomes Z.

  4. That gives GSJEBZ.

Worth noting

ESHCZX moves every letter backwards instead. Checking the last letter alone settles it: Y must become Z, not X.

Concept
Letter-shift codes
Typical time
55 s
Your time
—
The rule this testsLetter-shift and reversal codes
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Ten questions from Coding and Decoding, at your own pace.

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Ten questions from Coding and Decoding, at your own pace.