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Coding Decoding Questions Answers

Q1 :

In a coding system, APPLE is represented as ZKKOV. In such system, COW will be represented as

A
  

XLD

B
  

XMD

C
  

WLE

D
  

WDL

View Answer
Correct Answer: A

XLD

Description:

AZ PK PK LO EV So, CX OL WDbegin{aligned} because text{A} &rightarrow text{Z} text{P} &rightarrow text{K} text{P} &rightarrow text{K} text{L} &rightarrow text{O} text{E} &rightarrow text{V} text {So, }text{C} &rightarrow text{X} text{O} &rightarrow text{L} text{W} &rightarrow text{D} end{aligned}

Q2 :

If 'JUICE' is coded as '19-41-17-5-9', then 'TOY' will be coded as

A
  

39-29-49

B
  

41-31-51

C
  

13-23-3

D
  

15-25-5

View Answer
Correct Answer: A

39-29-49

Description:

J19 U41 I17 C5 E9 J=10 J=10×21=19 U=21 U=21×21=41 I=9 I=9×21=17 and C=5 or E=9 Similarly, T=20×21=39 O=15×21=29 Y=25×21=49 begin{aligned} because hspace{10pt} text{J} &rightarrow 19 text{U} &rightarrow 41 text{I} &rightarrow 17 text{C} &rightarrow 5 text{E} &rightarrow 9 text{J} &= 10 therefore hspace{10pt} text{J} &= 10 times 2 - 1 = 19 text{U} &= 21 therefore hspace{10pt} text{U} &= 21 times 2 - 1 = 41 text{I} &= 9 therefore hspace{10pt} text{I} &= 9 times 2 - 1 = 17 text{and } hspace{10pt} text{C} &= 5 text{ or E} = 9 text{Similarly, } hspace{10pt} text{T} &= 20 times 2 - 1 = 39 text{O} &= 15 times 2 - 1 = 29 text{Y} &= 25 times 2 - 1 = 49 end{aligned}

Q3 :

If BHOPAL = CGPOBK, then GWALIOR = ?

A
  

HVBKJNS

B
  

HXBMJPS

C
  

FVZKGNQ

D
  

FXZMGPQ

View Answer
Correct Answer: A

HVBKJNS

Description:


Q4 :

If PALE is coded as 7865 and EARTH as 58432, then ALERT is—

A
  

84543

B
  

86743

C
  

86543

D
  

86453

View Answer
Correct Answer: C

86543

Description:

PALE7865 or EARTH58432frac{text{P;A;L;E}}{7;;8;;6;;5} text{ or } frac{text{E;A;R;T;H}}{5;;8;4;;3;;2}

So, ALERT86543text{So, }frac{text{A;L;E;R;T}}{8;;6;5;;4;;3}

Q5 :

In a code language MOON is written as 4665, then in the same code language, how PKTU will be written?

A
  

7334

B
  

7332

C
  

7223

D
  

6213

View Answer
Correct Answer: C

7223

Description:

MOON131515144665begin{matrix} text{M}&text{O}&text{O}&text{N} downarrow & downarrow & downarrow & downarrow 13 & 15 & 15 &14 4&6&6&5 end{matrix}

Apply same rule:

PKTU161120217223begin{matrix} text{P}&text{K}&text{T}&text{U} downarrow & downarrow & downarrow & downarrow 16 & 11 & 20 &21 7&2&2&3 end{matrix}

Q6 :

Solve the following—
EJOT : 5101520 :: ABCD ?

A
  

1234

B
  

3421

C
  

3142

D
  

1324

View Answer
Correct Answer: A

1234

Description:

EJOT5,10,15,20ABCD1,2,3,4begin{matrix} text{E}text{J}text{O}text{T} &Rightarrow 5,10,15,20 \ text{A}text{B}text{C}text{D} &Rightarrow 1, 2, 3, 4 end{matrix}

Q7 :

Solve the following—
RAT : 912 :: ? : UAM

A
  

431

B
  

143

C
  

512

D
  

314

View Answer
Correct Answer: D

314

Description:

RAT18120912UAM21132+111+3314begin{matrix} & text{R}&text{A}&text{T} & downarrow & downarrow & downarrow Rightarrow & 18 & 1 & 20 &downarrow & downarrow & downarrow Rightarrow & 9 & 1 & 2 &text{U}&text{A}&text{M} &downarrow & downarrow & downarrow &21 & 1 & 3 &downarrow & downarrow & downarrow Rightarrow &2+1 & 1 & 1+3 Rightarrow & 3&1&4 end{matrix}

Q8 :

If TATA is written as PAPA, then how TALK will be written?

A
  

PAKH

B
  

KHAP

C
  

PAHK

D
  

PAGK

View Answer
Correct Answer: C

PAHK

Description:

Second and 4th position have no changes.


Q9 :

In a certain code, DONE is written as '5139' and 'SEAL' is written as '8942'. How is LOAD written in that code?

A
  

2415

B
  

2145

C
  

2945

D
  

2182

View Answer
Correct Answer: B

2145

Description:

DONE rightarrow 5139
SEAL  8942

In the same way
LOAD 2145

Q10 :

If r means '++', s means '×times', t means '÷div' u means '-', then 4 r 5 s 30 t 10 u 7 is equal to—

A
  

12

B
  

20

C
  

54

D
  

90

View Answer
Correct Answer: A

12

Description:

4r5s30t10u74+5×30÷1074+5×374+15719712begin{aligned} &4 r 5 s 30 t 10 u 7 &Rightarrow 4 + 5 times 30 div 10-7 &Rightarrow 4 + 5 times 3 - 7 &Rightarrow 4 + 15 - 7 &Rightarrow 19 - 7 &Rightarrow 12 end{aligned}

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