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Coding-Decoding Questions and Answers

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121.

If ROSE is coded as 6821, CHAIR is coded as 73456 and PREACH is coded as 961473, what will be the code for SEARCH ?

Answer: B

The alphabets are coded as shown :

{\color{Blue} \begin{matrix} R & O & S & E & C& H & A & I & P\\ 6& 8& 2& 1& 7 & 3 & 4 & 5 & 9 \end{matrix}}

So, in SEARCH,

S ia coded as 2,
E as 1,
A as 4,
R as 6,
C as 7,
H as 3.
Thus, the code for SEARCH is 214673

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122.

If GIVE is coded as 5137 and BAT is coded as 924, how is GATE coded ?

Answer: C

The alphabets are soded as shown :

G I V E B A T
5 1 3 7 9 2 4

So, G is coded as 5,
A as 2,
T as 4   and
E as 7.
Thus, the code fro GATE is 5247.

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123.

If PALE is coded as 2134, EARTH is coded as 41590, how is PEARL coded in that code ?

Answer: B

The alphabets are soded as shown :

P A L E R T H
2 1 3 4 5 9 0

So, P is coded as 2,
E as 4,
A as 1,
R as 5   and
L as 3.
Thus, the code for PEARL is 24153.

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124.

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. TENANT

Answer: D

The alphabets are soded as shown :

E N T R Y S A D
1 2 3 4 5 9 7 8


T is coded as 3
E as 1,
N as 2  and
A as 7.
So, TENANT is coded as 312723.

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125.

If in a certain language if ENTRY is coded as 12345 and STEADY is coded as 931785, then state which is the correct code for below word. NEATNESS

Answer: B

The alphabets are soded as shown :

 

E N T R Y S A D
1 2 3 4 5 9 7 8

N is coded as 2,
E as 1,
A as 7,
T as 3   and
S as 9.
So, NEATNESS is coded as 21732199.

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126.

If FRIEND is coded as HUMJTK, how is CANDLE written in that code ?

Answer: A

Correct answer: EDRIRL

The shift increases by one along the word: F+2, R+3, I+4, E+5, N+6, D+7 turns FRIEND into HUMJTK. CANDLE under the same rule gives C+2=E, A+3=D, N+4=R, D+5=I, L+6=R, E+7=L, that is EDRIRL.

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127.

(A)  '134' means 'you are well';

(B)  '758' means 'they go home';

(C)  '839' means 'we are home';

Which of the statements can be dispensed with while answering the above question?

Answer: A

We can find the code for 'home' from the second and third statements.

For finding the code for 'they', we need the code for 'go' which cannot be determined from the given data.
Clearly, statement A is not necessary.

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128.

In a certain code language, '3a, 2b, 7c' means 'Truth is Eternal';

'7c, 9a, 8b, 3a' means 'Enmity is not Eternal'  and

'9a, 4d, 2b, 8b' means 'Truth does not perish'.

Which of the following means 'enmity' in that language ?

Answer: C

In the second and third statements, the common code is '9a' and the common word is 'not'.

So, '9a' means 'not'.
In the first and second statements, the common codes are '7c' and '3a' and the common words are 'is' and 'Eternal'.
So, in the second statement, '8b' means 'enmity'.

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129.

In a certain code language BOOK is written as CPPL. How will PEN be written in that code ?

Answer: C

Correct answer: QFO

Each letter moves one place forward in the alphabet: B becomes C, O becomes P, K becomes L.

The same rule turns P into Q, E into F and N into O, giving QFO.

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130.

If green means red, red means yellow, yellow means blue, blue means orange and orange means green, what is the colour of clean sky ?

Answer: C

Correct answer: Yellow

The question asks what the sky would be called in this language, not what it is called in ours. A clear sky is blue, and the list says yellow means blue - so blue is what these speakers call yellow. Reading the substitution the wrong way round gives orange, which is what blue means rather than what means blue.

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