Coding Decoding – Railway Reasoning

Total Questions: 50

21. In a certain code language YELLOW is coded as BVOOLD. How is GREEN coded in that language? [RPF S.I. 19/12/2018 (Morning)]

Correct Answer: (d) TIVVM
Solution:

Opposite letter are used as coding

22. In a certain code, if PEARLS is written as 823745 and JEWELS is written as 926245, then in the same code, what will WEARS be written as? [RRB ALP Tier – I 21/08/2018 (Morning)]

Correct Answer: (d) 62375
Solution:

Here the letters are coded directly as their numbers given in the question.

23. In a certain code language, ‘MFBTF’ is written as ‘LEASE’ and ‘UNISE’ is written as ‘TMHRD’. How will ‘TRICK’ be written in that language? [Group – D 17/08/2022 (Morning)]

Correct Answer: (b) SQHBJ
Solution:

24. In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer. [Group – D 17/08/2022 (Afternoon)]

Number / Symbol953#6&7@%82
   CodeLKJHGFDSAPB


Conditions:

(i) If the first two elements are numbers and the last is a symbol, then interchange the codes for the second number and the last symbol.

(ii) If the second element is a symbol and the last is a symbol, then all the symbols are to be coded as C.

(iii) If the question has any number which is immediately preceded by a prime number, then interchange the codes of the first and last number appearing in the question.

Question: 7 9 & 8 % # 3

Correct Answer: (b) JLFPAHJD
Solution:

As the given question does not follow the criteria of condition I and condition II but only follows condition III.
So, we should have to change the codes of the First and Last number appearing in the question. And rest of all numbers should be coded according to the given table i.e.
7 9 & 8 % # 3 → J L F P A H D

25. In a certain code language, TRIP is written as WULS and SOME is written as VRPH. How will CLAN be written in the same language. [Group – D 18/08/2022 (Afternoon)]

Correct Answer: (a) FODQ
Solution:

26. In a certain code language, ‘LEFT’ is written as ‘VGFN’ and ‘DESK’ is written as ‘MTTF’. How will ‘HELP’ be written in that language? [Group – D 18/08/2022 (Afternoon)]

Correct Answer: (c) RMFJ
Solution:

27. In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer. [Group – D 18/08/2022 (Evening)]

Number / Symbol4%73#*9@6
     CodeXNBJHLYFR


Conditions:

(i) If the first element is an even number and the last a number, the codes for these two (the first and the last elements) are to be interchanged.

(ii) If the first element is an odd number and the last an even number, then the first and last elements are to be retained as it is (i.e. first and last elements won’t get coded).

Question: 7 * % 3 @ 6

Correct Answer: (c) 7LNJF6
Solution:

Condition (i) is not applicable because condition (i) states that the first element is an even number.
According to condition II, if the first element is an odd number and the last an even number then the first number and last number won’t get coded.
we get 7 * % 3 @ 6 and finally, we get
7 L N J F 6

28. In a certain code language, ‘PTEJAD’ is written as ‘OUEIAE’ and ‘FHNOI’ is written as ‘EIMOI’. How will ‘TUPAI’ be written in that language? [Group – D 22/08/2022 (Afternoon)]

Correct Answer: (d) SUQAI
Solution:

Vowel should not be changed (remains same) i.e

29. In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer. [Group – D 22/08/2022 (Evening)]

Number / Symbol467$#@2
       CodeHFMETPZ


Conditions:

(i) If the first element is an even number and the last element is also an even number, the codes for these two (the first and the last elements) are to be interchanged.

(ii) If the second element is an even number and the fifth element is a symbol, the codes for these two (the second and the fifth elements) are to be interchanged.

(iii) If the fourth element is a symbol and the sixth element is also a symbol, both these elements (the fourth and the sixth elements) are to be coded as N.

Question: 4 6 $ 7 4 # @ 2

Correct Answer: (b) ZFEMHTPH
Solution:

Given components : 4 6 $ 7 4 # @ 2
Since, Neither the condition (ii) nor condition (iii) follows. Only condition (i) follows.
Hence according to the condition (i) we get,
ZFEMHTPH

30. In a certain code language, ‘CURRY’ is written as ‘BSONT’ and ‘KHAKI’ is written as ‘JFXGD’. How will ‘BHEEM’ be written in that language? [Group – D 22/08/2022 (Evening)]

Correct Answer: (a) AFBAH
Solution: