Coding-Decoding Questions and Answers

Answer: D

Correct answer: WGJHV

Reverse the word, then apply an alternating shift of three forward and one back. CLOUD reversed is DUOLC, and D+3=G, U−1=T, O+3=R, L−1=K, C+3=F gives GTRKF. SIGHT reversed is THGIS, so T+3=W, H−1=G, G+3=J, I−1=H, S+3=V, giving WGJHV.

Answer: A

Here each word is coded as follows:

The first word of the code for a corresponding word is the alphabet preceding 2 places to the last letter of the word in English Alphabetical order.

The last letter of the word for a corresponding word is the alphabet succeeding 2 places to the first word of the word in English Alphabetical order. The number in the middle of code is the absolute value of the difference of the position of the last alphabet for a word in English Alphabetical order and the number of alphabets in each corresponding word.

For example:

Trees: The first alphabet of the code is Q, which is preceding 2 places to S. The last alphabet of the code is V, which is succeeding 2 places to T.

The number is: 19(position of S) - 5(number of letters) = 14

Similarly,

Thanks for the treat is coded as ‘Q13V P15H C2V R15V’

Answer: C

Here each word is coded as follows:

The first word of the code for a corresponding word is the alphabet preceding 2 places to the last letter of the word in English Alphabetical order.

The last letter of the word for a corresponding word is the alphabet succeeding 2 places to the first word of the word in English Alphabetical order.

The number in the middle of code is the absolute value of the difference of the position of the last alphabet for a word in English Alphabetical order and the number of alphabets in each corresponding word.

For example:

Trees: The first alphabet of the code is Q, which is preceding 2 places to S. The last alphabet of the code is V, which is succeeding 2 places to T.

The number is: 19(position of S) - 5(number of letters) = 14

Similarly,

Movies is coded as ‘Q13O

Answer: C

Here each word is coded as follows:

The first word of the code for a corresponding word is the alphabet preceding 2 places to the last letter of the word in English Alphabetical order.

The last letter of the word for a corresponding word is the alphabet succeeding 2 places to the first word of the word in English Alphabetical order.

The number in the middle of code is the absolute value of the difference of the position of the last alphabet for a word in English Alphabetical order and the number of alphabets in each corresponding word.

For example:

Trees: The first alphabet of the code is Q, which is preceding 2 places to S. The last alphabet of the code is V, which is succeeding 2 places to T.

The number is: 19(position of S) - 5(number of letters) = 14

Similarly,

Happy for you is coded as W20J P15H S18 A

Answer: B

There are 11 letters each in the given word and its code. It means that there is one code letter for each letter of the given word. After careful observation of the given word its code it is clear that the code has been generated by rearranging the letters of the given word.
The middle letter of the given word remains at its position while other letters of both sides of it are rearrange in a certain way

Answer: C

There are eight letters in the given word. in the first step the letters of the given word have been divided into two equal parts:
STAN and DING
In the second step, the letters each part have been written in the reverse order.
NATS and GIND
Similary,
Step I PROD and UCES
Step II DORP and SECU
 

Answer: D

Correct answer: DBUSILEHP

Reverse the word, then exchange the second and third letters with the seventh and eighth. NUMERICAL reversed is LACIREMUN; swapping AC with MU gives LMUIREACN. PUBLISHED reversed is DEHSILBUP; swapping EH with BU gives DBUSILEHP. Both example and answer use exactly the same rearrangement, which is how the rule can be confirmed.

Answer: C

Correct answer: EKVPCTH

Reverse the word, then advance every letter by two. DISTURB reversed is BRUTSID, and adding two to each gives DTWVUKF. FRANTIC reversed is CITNARF, and adding two gives C→E, I→K, T→V, N→P, A→C, R→T, F→H, that is EKVPCTH.

Answer: C

MADE is written as ∗ ÷ × %.

Each letter has its own symbol, in order. From GAME = $ ÷ ∗ %: G = $, A = ÷, M = ∗, E = %. From BEAD = # % ÷ ×: B = #, E = %, A = ÷, D = ×.

So M A D E = ∗ ÷ × %. The first option starts with the code for G, the second puts $ (G) in place of D, and the last starts with # (B).

Answer: A

VIGOROUS is written as 22187121812619.

Consonants are coded by their position in the alphabet, and vowels by their position counted from Z (27 minus the position). GREAT: G = 7, R = 18, E = 27 - 5 = 22, A = 27 - 1 = 26, T = 20, giving 718222620. MONK: M = 13, O = 27 - 15 = 12, N = 14, K = 11.

VIGOROUS: V = 22, I = 27 - 9 = 18, G = 7, O = 12, R = 18, O = 12, U = 27 - 21 = 6, S = 19, giving 22 18 7 12 18 12 6 19 = 22187121812619. The other options miscode the vowels.