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Coding and Decoding · Question 13 of 66

Question 13

MediumOriginal question

In a code language, LION is written as ORLM. Which word is written as GRTVI in that language?

Options for question 13

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. L (12) became O (15) and I (9) became R (18): positions add to 27, so each letter is replaced by its opposite.

  2. The opposite code undoes itself, so decode GRTVI by taking opposites again.

  3. G to T, R to I, T to G, V to E, I to R.

  4. The word is TIGER.

Worth noting

IVTRG only reverses the code and HSUWJ shifts it forward by 1. The opposite rule works the same way in both directions.

Concept
Decoding an opposite-letter code
Typical time
70 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.