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Coding Decoding Reasoning Practice Questions

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In many Govt Job exams, bank IBPS exams , teaching TET SET exams, coding decoding is common type of reasoning question which is asked very frequently. Being an aspirant to those exam you should always focus upon Coding-decoding section as it is easy and good scoring section.

Below we have listed very important coding Decoding Questions for Entrance Exam,Bank- IBPS PO, clerk EXAM and also for various state Govt exams for like Cooperative banks,LIC, Railways etc.

Question 1:

In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code language?

A) MFEDJJOEB) EOJDEJFM
C) MFEJDJOED) EOJDJEFM
Answer

Option (D) : EOJDJEFM

Explanation:

– The coded word can be obtained by taking the immediately following letters of word, expect the first and the last letters of the given word but in the reverse order. That means, in the coded form the first and the last letters have been interchanged while the remaining letters are coded by taking their immediate next letters in the reverse order.

Questions 2: In a certain code ‘MISSIONS’ is written as ‘MSIISNOS’. How is ‘ONLINE’ written in that code?

1. OLNNIE

2. ONILEN

3. NOILEN

4. LNOENI

5. ONNLIE

Answer

Option 1
Explanation: First and last letter remain same. The others interchange their positions in pair of two. So, NL become LN IN become NI so code of ONLINE will be OLNNIE

Questions 3:

In certain code ‘TIGER’ is written as ‘QDFHS’. How is ‘FISH’ written in that code?

1. GERH

2. GRHE

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3. GREH

4. GHRE

5. GEHR

Answer

Option 2
Explanation: Reverse the word and move each letter –1. Reverse of FISH is HSIF subtract 1 from each letter of HSIF. So code of FISH become GRHE.

Questions 3-B:

In a certain code language,

‘134’ means ‘good and tasty’;

‘478’ means ‘see good pictures’  and

‘729’ means ‘pictures are faint’.

Which of the following digits stands for ‘see’?

A) 9B) 2
C) 1D) 8
Answer

Option (D) 8

Explanation:

Justification: 

In the first and second statements, the common code digit is ‘4’ and the common word is ‘good’.

So, ‘4’ stands for ‘good’.
In the second and third statements, the  common code digit is ‘7’ and the common word is ‘pictures’.
So, ‘7’ means ‘pictures’.
Thus, in the second statements, ‘8’ means ‘see’.

Questions 4:

 bcd’ is coded as ‘def’ then ‘True’ is coded as……….

  1. Vtwg
  2. wtvg
  3. WTwg
  4. Vwwg
Answer

Option : 1

 b – d (+2)
c – e (+2)
d – f (+2)
+2 letters are considered in this code.
True – Vtwg

Question 5:

‘ Hyderabad ’ is coded as ‘Ixedszcze’ then ‘Chennai’ is coded as…………..

  1. bgfcozj
  2. dgfmozj
  3. ddfnozp
  4. ddfmzzp
Answer

Option 2

 H – I (+1)
Y – X (1–)
D – E (1+)
E – D (1-)
R – S (1+)
A – Z (1–)
B – C (1+)
A – Z (1– )
D – E (1+)
Here if we observe alternatively the letter increasing and one letter decreasing.
Chennai =dgfmozj

Question 6:

Apple is coded as 25563, Rung is coded as 7148. Then purple is coded as ..

  1. 517563
  2. 527536
  3. 617534
  4. 617536
Answer
Coding Decoding Reasoning Practice Questions

PURPLE – 517563
Answer = 517563.

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