Coding and Decoding Questions for SSC Exams - 1

Question: 1

If PEOPLE is coded as PLPOEE, how is TREND coded?

(A) TNERD

(B) TRDNE

(C) NDETR

(D) DNERT

Ans: A

The first and the last letters of the word remain unchanged, while the second and second last, third and third last letters and so on are interchaned, to obtain the code.

Question: 2

In a certain code, EXPLAINING is written as PXEALNIGNI. How is PRODUCED written in that code?

(A) ORPUDECD

(B) DORPDECU

(C) ROPUDECD

(D) ORPBUDEC

Ans: A

In the code, first three letters are reversed, then next two letters, then again next two letters and finally the last three letters are reversed in order.

Question: 3

If BELIEF is written as afkkdi, how is SELDOM written in that code?

(A) rdkcnl

(B) rfkenn

(C) rfkfnp

(D) tfkenp

Ans: C

The first, third and fifth letters of the word are each moved one step backwad while the second, fourth and sixth letters are respectively moved one, two and three steps forward to obtain the corresponding letters of the code.

Question: 4

In a certain code, PAPER is written as SCTGW. How is MOTHER written in that code?

(A) PQXJJT

(B) PQXKJV

(C) PQVJGT

(D) ORVLGW

Ans: A

The first, third and fifth letters of the word are respectively moved three, four and five steps forward, while the letters at even positions are each moved two steps forward, to obtain the corresponding letters of the code.

Question: 5

If TAP is coded as SZO, then how is FREEZE coded?

(A) EQDDYD

(B) GQFDYF

(C) ESDFYF

(D) EQDFYG

Ans: A

Clearly, each letter in the word TAP is moved one step backward to obtain the corresponding letter of the code.
Thus, in FREEZE, F will be coded as E, R as Q, E as D and Z as Y. So, the code becomes DQDDYD.

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