Coding Decoding MCQ Quiz - Objective Question with Answer for Coding Decoding - Download Free PDF

Last updated on Jun 15, 2025

Latest Coding Decoding MCQ Objective Questions

Coding Decoding Question 1:

In a certain language, if “CAMPHOR” is coded as “DCPTMUY” and if “TROUBLE” is coded as “UTRYGRL”, then how would the word “PLUMBER” be coded in that language?

  1. QNXOGKY
  2. OMXOGKZ
  3. QNXQGKY
  4. ONXOGKY
  5. None of the above

Answer (Detailed Solution Below)

Option 3 : QNXQGKY

Coding Decoding Question 1 Detailed Solution

The pattern followed is,

And,

Similarly,

Hence, “QNXQGKY” is the correct answer.

Coding Decoding Question 2:

If in a coded language, COIN is coded as 8574 and UNTIL is coded as 94371, then COCONUT will be:

  1. 9393596
  2. 8585493
  3. 8585321
  4. 9393593
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : 8585493

Coding Decoding Question 2 Detailed Solution

The pattern followed here is,

COIN is coded as 8574,

C O I N
8 5 7 4

UNTIL is coded as 94371,

U N T I L
9 4 3 7 1

COCONUT will be coded as,

C O C O N U T
8 5 8 5 4 9 3

Hence, code for "COCONUT" is "8585493".

Coding Decoding Question 3:

In a certain code language, 'PHYSICS' is written as 'NFWQGAQ'. How will 'CHEMISTRY' be written in the same code language?

  1. AJCKGQRPW
  2. AFCKGQRPW
  3. EJGOKUVTA
  4. DIFNJTUSZ
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : AFCKGQRPW

Coding Decoding Question 3 Detailed Solution

The pattern followed here is:

According to the alphabetical positions of the letters,

Similarly,

Hence, ‘AFCKGQRPW’ is the correct answer.

Coding Decoding Question 4:

Ina code language, if KARAN is written as 45, then how will ARUN be written as in that language?

  1. 56
  2. 54
  3. 41
  4. 42
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : 54

Coding Decoding Question 4 Detailed Solution

The pattern followed here is:

According to the alphabetical positions of the letters,

KARAN → K (11) + A (1) + R (18) + A (1) + N (14) = 11 + 1 + 18 + 1 + 14 = 45

Similarly,

ARUN → A (1) + R (18) + U (21) + N (14) = 1 + 18 + 21 + 14 = 54

Hence, ‘54’ is the correct answer.

Coding Decoding Question 5:

In a certain code language, ‘FATIGUE’ is written as ‘VFTRGZU’. Similarly, how will ‘MONKEY’ be written in that code?

  1. NLMPVB
  2. BVPMLN
  3. BVMPLN
  4. VBPMLN
  5. None of the above

Answer (Detailed Solution Below)

Option 2 : BVPMLN

Coding Decoding Question 5 Detailed Solution

According to the English alphabet series and its positional value

.

The pattern follows here is:

Letters are replaced by reverse letter.

Similarly,

Hence, the correct answer is BVPMLN.

Shortcut TrickShortcut to remember the reverse positional letters.

Top Coding Decoding MCQ Objective Questions

In a certain code language, 'LEMON' is written as 'ELMNO'. How will 'CLUSTER' be written in that language?

  1. CELRSTU
  2. CLESRUT
  3. LUCETRS
  4. LCUTESR

Answer (Detailed Solution Below)

Option 1 : CELRSTU

Coding Decoding Question 6 Detailed Solution

Download Solution PDF

The logic followed here is :-

'LEMON' is written as 'ELMNO'.

Similarly,

'CLUSTER' will be written as :

Hence, the correct answer is "CELRSTU".

If PIPE is written as 169165, then what is the last digit of SWAN?

  1. 5
  2. 6
  3. 4
  4. 3

Answer (Detailed Solution Below)

Option 3 : 4

Coding Decoding Question 7 Detailed Solution

Download Solution PDF

We know that,

The pattern followed here is as follows,

Similarly,

Thus SWAN is written as 1923114.

Hence, “4” is the last digit of SWAN.

In a code language, if SEND is written as 168, then how will PURSE be written in the same language?

  1. 225
  2. 185
  3. 415
  4. 395

Answer (Detailed Solution Below)

Option 4 : 395

Coding Decoding Question 8 Detailed Solution

Download Solution PDF

The pattern followed here is:

According to the alphabetical positions of the letters,

Logic is: Sum of the place value of the letters × Number of letters in the word

 SEND = 19 + 5 + 14 + 4 = 42 × 4 = 168

Similarly,

PURSE = 16 + 21 + 18 + 19 + 5 = 79 × 5 = 395 

Hence, ‘395’ is the correct answer.

In a certain code language, 'BEHOLD’ is written as 'BDEHLO' and 'INDEED' is written as 'DDEEIN'. How will 'COURSE' be written in that language?

  1. CEROSU
  2. CEORUS
  3. CEOSUR
  4. CEORSU

Answer (Detailed Solution Below)

Option 4 : CEORSU

Coding Decoding Question 9 Detailed Solution

Download Solution PDF

Logic : Letters of the word are arranged in ascending order according to English alphabetic series.

So,

  • 'BEHOLD’ is written as 'BDEHLO'

  • 'INDEED' is written as 'DDEEIN'

Similarly,

  • 'COURSE' is written as :​

Hence, "CEORSU" is the correct answer.

In a certain code language, ‘CROWD’ is coded as 23415924 and ‘TRHICK’ is coded as 162491997. How will ‘FRUGAL’ be coded in that language? 

  1. 1221021186
  2. 1226761821
  3. 1521012291
  4. 1512021921

Answer (Detailed Solution Below)

Option 4 : 1512021921

Coding Decoding Question 10 Detailed Solution

Download Solution PDF

The table is alphabets place value:

The pattern followed here is:

Step 1: Vowels place values coded as numbers. 

Step 2: Consonants opposite alphabet place value code as numbers.

Step 3: Then this coded number is arranged in reverse order.

‘CROWD’ is coded as 23415924

And,

‘TRHICK’ is coded as 162491997

Similarly,

‘FRUGAL’ be coded

Hence, ‘FRUGAL’ is coded as "1512021921".

In a certain code language, 6219 means ‘Sachin is a cricketer’ and 2646 means ‘He played from Mumbai’. Which of the following is the code for ‘Mumbai is very famous’?

  1. 7945
  2. 2458
  3. 6246
  4. 6285 

Answer (Detailed Solution Below)

Option 3 : 6246

Coding Decoding Question 11 Detailed Solution

Download Solution PDF

The pattern followed here is:

The word is coded as the total letter number of letters present in the word.

6219 means ‘Sachin is a cricketer’

And,

2646 means ‘He played from Mumbai’

Similarly,

‘Mumbai is very famous’ means ?

Hence, the correct answer is "6246".

In a certain code language, 'CONSULT' is written as 'FOQRVWX'. How will 'MAGNETS' be written in that language?

  1. DHJPVQW
  2. DHPJVQW
  3. DHPJQVW
  4. DHJPQVW

Answer (Detailed Solution Below)

Option 4 : DHJPQVW

Coding Decoding Question 12 Detailed Solution

Download Solution PDF

The position of letters according to the English alphabet series:

Logic: + 3 every letter then arranged alphabetical order.

'CONSULT' is written as 'FOQRVWX'

Similarly,

'MAGNETS' is written as '?'

Hence, the correct answer is "DHJPQVW".

In a certain code, TOUCH is written as 68. How will ERROR be written in that code?

  1. 61
  2. 54
  3. 59
  4. 55

Answer (Detailed Solution Below)

Option 1 : 61

Coding Decoding Question 13 Detailed Solution

Download Solution PDF

Note:  This is SSC GD Previous year question paper and given answer as per the official answer key.

The letters are replaced by the place value of their reverse letter and then the numbers are added together to obtain the code.

Similarly,

Hence, ‘61’ is the correct answer.

Mistake PointsTOUCH = 20 + 15 + 21 + 3 + 8 =  67 and 67 + 1 = 68

ERROR = 5 + 18 + 18 + 15 + 18 = 74 and  74 + 1 = 75

75 is not in the options so the logic is different here.

The logic here is not sum of positional value + 1, but the logic here is sum of opposite positional value of letters.

In a certain code language, ‘ARROW’ is written as ‘FOOSE’ and ‘GERM’ is written as ‘THOR’. How will ‘MOWER’ be written in that language?

  1. SHORE
  2. ROSHE
  3. RSEHO
  4. HORSE

Answer (Detailed Solution Below)

Option 3 : RSEHO

Coding Decoding Question 14 Detailed Solution

Download Solution PDF

The logic followed here is:

 ‘ARROW’ is coded as ‘FOOSE’

‘GERM’ is coded as ‘THOR’

So, by observing the pattern, we can conclude that,

 A = F, R = O, O = S, W = E, G = T, E = H, R = O and M = R.

Now, we have to find the code for MOWER

As the codes of all the letters have been given in the question,

M = R, O = S, W = E, E =H, and R = O

Hence,

‘MOWER’ = ?

Hence, MOWER is coded as RSEHO.

In a certain code language, 'India is my country' means ‘8573’, 'Sam is my friend' means ‘8634’, 'My country' means ‘73’ and 'Team India' means ‘59’. What number is the code for 'Country'?

  1. 5
  2. 7
  3. 8
  4. 3

Answer (Detailed Solution Below)

Option 2 : 7

Coding Decoding Question 15 Detailed Solution

Download Solution PDF

According to the given information

‘Country’ is coded as 7.

Hence, ‘7’ is the correct answer.

Hot Links: lotus teen patti teen patti gold old version teen patti real cash game teen patti 100 bonus