Olympiad Test: Coding – Decoding - 1 - Class 5 MCQ

Given: TRUTH is coded as SUQSTVSUGI.

Logic: 

Similarly,

Hence, EGZBKMRTDF is the correct answer.

According to the question, the pattern followed is that the last letter is placed at the same place as placed in the word and the rest of the word reverses.

Therefore, we can say that,
Hence, the correct answer is ETUPMOCR.

The letters in the first half and second half of the word are written in the reverse order and then each letter of the group so obtained is moved one step forward to get the code.

Thus, we have
COVALENT- COVA / LENT- AVOC / TNEL → BWPD / UOFM
and
FORM- FO / RM- OF / MR → PG / NS

In the same way,
SILVER– SIL / VER– LIS / REV → MJT / SFW
Hence, the correct answer is MJTSFW.

We have,

Similarly,

The pattern used to encode the word "MOTHER" into "OMHTRE" is to divide the word into three groups of two letters and reverse the letters in each group:

• MOTHER → MO TH ER → OM HT RE

Now, applying the same pattern to the word "ANSWER":

• ANSWER → AN SW ER → NA WS RE

Therefore, "ANSWER" will be written as NAWSRE.

We have,

The pattern that follows here is the addition of 2 to the place value of the respective alphabets in the given word to get the code for the word SPEAK.

We have,

Similarly,

Therefore, 'AVOID' is written as 'KQXCF'.

Hence, 'KQXCF' is the correct answer.

Given that,
CONTRIBUTE is written as ETBUIRNTOC
Reverse the word and distribute them into equal parts of each 2,
Leaving the first pair to replace the positions in the pairs of followed next.

So the correct answer is L.

The pattern followed is:

‘GRASP’ is coded as ‘BMVNK'.

Similarly,

"CRANE" will be coded as "XMVIZ".

Hence, the correct answer is "XMVIZ".

In the code, the first four and the last four letters of the word are separately interchanged.

Hence, the correct answer is ‘PRESERVE’.